1640692480

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 288

約数和(自身を含む): 4753526400

約数和(自身を除く): 3112833920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 64, 70, 74, 80, 98, 101, 112, 128, 140, 148, 160, 185, 196, 202, 224, 245, 256, 259, 280, 296, 320, 343, 370, 392, 404, 448, 490, 505, 518, 560, 592, 640, 686, 707, 740, 784, 808, 896, 980, 1010, 1036, 1120, 1184, 1280, 1295, 1372, 1414, 1480, 1568, 1616, 1715, 1792, 1813, 1960, 2020, 2072, 2240, 2368, 2590, 2744, 2828, 2960, 3136, 3232, 3430, 3535, 3626, 3737, 3920, 4040, 4144, 4480, 4736, 4949, 5180, 5488, 5656, 5920, 6272, 6464, 6860, 7070, 7252, 7474, 7840, 8080, 8288, 8960, 9065, 9472, 9898, 10360, 10976, 11312, 11840, 12544, 12691, 12928, 13720, 14140, 14504, 14948, 15680, 16160, 16576, 18130, 18685, 19796, 20720, 21952, 22624, 23680, 24745, 25382, 25856, 26159, 27440, 28280, 29008, 29896, 31360, 32320, 33152, 34643, 36260, 37370, 39592, 41440, 43904, 45248, 47360, 49490, 50764, 52318, 54880, 56560, 58016, 59792, 62720, 63455, 64640, 66304, 69286, 72520, 74740, 79184, 82880, 87808, 90496, 98980, 101528, 104636, 109760, 113120, 116032, 119584, 126910, 129280, 130795, 138572, 145040, 149480, 158368, 165760, 173215, 180992, 183113, 197960, 203056, 209272, 219520, 226240, 232064, 239168, 253820, 261590, 277144, 290080, 298960, 316736, 331520, 346430, 366226, 395920, 406112, 418544, 439040, 452480, 464128, 478336, 507640, 523180, 554288, 580160, 597920, 633472, 692860, 732452, 791840, 812224, 837088, 904960, 915565, 956672, 1015280, 1046360, 1108576, 1160320, 1195840, 1266944, 1281791, 1385720, 1464904, 1583680, 1624448, 1674176, 1831130, 2030560, 2092720, 2217152, 2320640, 2391680, 2563582, 2771440, 2929808, 3167360, 3248896, 3348352, 3662260, 4061120, 4185440, 4434304, 4783360, 5127164, 5542880, 5859616, 6334720, 6408955, 6696704, 7324520, 8122240, 8370880, 8868608, 10254328, 11085760, 11719232, 12817910, 14649040, 16244480, 16741760, 20508656, 22171520, 23438464, 25635820, 29298080, 33483520, 41017312, 44343040, 46876928, 51271640, 58596160, 82034624, 102543280, 117192320, 164069248, 205086560, 234384640, 328138496, 410173120, 820346240, 1640692480]

約数ペア:

[(1, 1640692480), (2, 820346240), (4, 410173120), (5, 328138496), (7, 234384640), (8, 205086560), (10, 164069248), (14, 117192320), (16, 102543280), (20, 82034624), (28, 58596160), (32, 51271640), (35, 46876928), (37, 44343040), (40, 41017312), (49, 33483520), (56, 29298080), (64, 25635820), (70, 23438464), (74, 22171520), (80, 20508656), (98, 16741760), (101, 16244480), (112, 14649040), (128, 12817910), (140, 11719232), (148, 11085760), (160, 10254328), (185, 8868608), (196, 8370880), (202, 8122240), (224, 7324520), (245, 6696704), (256, 6408955), (259, 6334720), (280, 5859616), (296, 5542880), (320, 5127164), (343, 4783360), (370, 4434304), (392, 4185440), (404, 4061120), (448, 3662260), (490, 3348352), (505, 3248896), (518, 3167360), (560, 2929808), (592, 2771440), (640, 2563582), (686, 2391680), (707, 2320640), (740, 2217152), (784, 2092720), (808, 2030560), (896, 1831130), (980, 1674176), (1010, 1624448), (1036, 1583680), (1120, 1464904), (1184, 1385720), (1280, 1281791), (1295, 1266944), (1372, 1195840), (1414, 1160320), (1480, 1108576), (1568, 1046360), (1616, 1015280), (1715, 956672), (1792, 915565), (1813, 904960), (1960, 837088), (2020, 812224), (2072, 791840), (2240, 732452), (2368, 692860), (2590, 633472), (2744, 597920), (2828, 580160), (2960, 554288), (3136, 523180), (3232, 507640), (3430, 478336), (3535, 464128), (3626, 452480), (3737, 439040), (3920, 418544), (4040, 406112), (4144, 395920), (4480, 366226), (4736, 346430), (4949, 331520), (5180, 316736), (5488, 298960), (5656, 290080), (5920, 277144), (6272, 261590), (6464, 253820), (6860, 239168), (7070, 232064), (7252, 226240), (7474, 219520), (7840, 209272), (8080, 203056), (8288, 197960), (8960, 183113), (9065, 180992), (9472, 173215), (9898, 165760), (10360, 158368), (10976, 149480), (11312, 145040), (11840, 138572), (12544, 130795), (12691, 129280), (12928, 126910), (13720, 119584), (14140, 116032), (14504, 113120), (14948, 109760), (15680, 104636), (16160, 101528), (16576, 98980), (18130, 90496), (18685, 87808), (19796, 82880), (20720, 79184), (21952, 74740), (22624, 72520), (23680, 69286), (24745, 66304), (25382, 64640), (25856, 63455), (26159, 62720), (27440, 59792), (28280, 58016), (29008, 56560), (29896, 54880), (31360, 52318), (32320, 50764), (33152, 49490), (34643, 47360), (36260, 45248), (37370, 43904), (39592, 41440)]