642478720

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:163

約数の個数: 256

約数和(自身を含む): 1776660480

約数和(自身を除く): 1134181760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 47, 52, 53, 62, 64, 65, 80, 94, 104, 106, 124, 128, 130, 155, 160, 188, 208, 212, 235, 248, 260, 265, 310, 320, 376, 403, 416, 424, 470, 496, 520, 530, 611, 620, 640, 689, 752, 806, 832, 848, 940, 992, 1040, 1060, 1222, 1240, 1378, 1457, 1504, 1612, 1643, 1664, 1696, 1880, 1984, 2015, 2080, 2120, 2444, 2480, 2491, 2756, 2914, 3008, 3055, 3224, 3286, 3392, 3445, 3760, 3968, 4030, 4160, 4240, 4888, 4960, 4982, 5512, 5828, 6016, 6110, 6448, 6572, 6784, 6890, 7285, 7520, 8060, 8215, 8320, 8480, 9776, 9920, 9964, 11024, 11656, 12220, 12455, 12896, 13144, 13780, 14570, 15040, 16120, 16430, 16960, 18941, 19552, 19840, 19928, 21359, 22048, 23312, 24440, 24910, 25792, 26288, 27560, 29140, 30080, 32240, 32383, 32860, 33920, 37882, 39104, 39856, 42718, 44096, 46624, 48880, 49820, 51584, 52576, 55120, 58280, 64480, 64766, 65720, 75764, 77221, 78208, 79712, 85436, 88192, 93248, 94705, 97760, 99640, 105152, 106795, 110240, 116560, 128960, 129532, 131440, 151528, 154442, 159424, 161915, 170872, 186496, 189410, 195520, 199280, 210304, 213590, 220480, 233120, 257920, 259064, 262880, 303056, 308884, 318848, 323830, 341744, 378820, 386105, 391040, 398560, 427180, 440960, 466240, 518128, 525760, 606112, 617768, 647660, 683488, 757640, 772210, 797120, 854360, 932480, 1003873, 1036256, 1051520, 1212224, 1235536, 1295320, 1366976, 1515280, 1544420, 1594240, 1708720, 2007746, 2072512, 2424448, 2471072, 2590640, 2733952, 3030560, 3088840, 3417440, 4015492, 4145024, 4942144, 5019365, 5181280, 6061120, 6177680, 6834880, 8030984, 9884288, 10038730, 10362560, 12122240, 12355360, 13669760, 16061968, 20077460, 20725120, 24710720, 32123936, 40154920, 49421440, 64247872, 80309840, 128495744, 160619680, 321239360, 642478720]

約数ペア:

[(1, 642478720), (2, 321239360), (4, 160619680), (5, 128495744), (8, 80309840), (10, 64247872), (13, 49421440), (16, 40154920), (20, 32123936), (26, 24710720), (31, 20725120), (32, 20077460), (40, 16061968), (47, 13669760), (52, 12355360), (53, 12122240), (62, 10362560), (64, 10038730), (65, 9884288), (80, 8030984), (94, 6834880), (104, 6177680), (106, 6061120), (124, 5181280), (128, 5019365), (130, 4942144), (155, 4145024), (160, 4015492), (188, 3417440), (208, 3088840), (212, 3030560), (235, 2733952), (248, 2590640), (260, 2471072), (265, 2424448), (310, 2072512), (320, 2007746), (376, 1708720), (403, 1594240), (416, 1544420), (424, 1515280), (470, 1366976), (496, 1295320), (520, 1235536), (530, 1212224), (611, 1051520), (620, 1036256), (640, 1003873), (689, 932480), (752, 854360), (806, 797120), (832, 772210), (848, 757640), (940, 683488), (992, 647660), (1040, 617768), (1060, 606112), (1222, 525760), (1240, 518128), (1378, 466240), (1457, 440960), (1504, 427180), (1612, 398560), (1643, 391040), (1664, 386105), (1696, 378820), (1880, 341744), (1984, 323830), (2015, 318848), (2080, 308884), (2120, 303056), (2444, 262880), (2480, 259064), (2491, 257920), (2756, 233120), (2914, 220480), (3008, 213590), (3055, 210304), (3224, 199280), (3286, 195520), (3392, 189410), (3445, 186496), (3760, 170872), (3968, 161915), (4030, 159424), (4160, 154442), (4240, 151528), (4888, 131440), (4960, 129532), (4982, 128960), (5512, 116560), (5828, 110240), (6016, 106795), (6110, 105152), (6448, 99640), (6572, 97760), (6784, 94705), (6890, 93248), (7285, 88192), (7520, 85436), (8060, 79712), (8215, 78208), (8320, 77221), (8480, 75764), (9776, 65720), (9920, 64766), (9964, 64480), (11024, 58280), (11656, 55120), (12220, 52576), (12455, 51584), (12896, 49820), (13144, 48880), (13780, 46624), (14570, 44096), (15040, 42718), (16120, 39856), (16430, 39104), (16960, 37882), (18941, 33920), (19552, 32860), (19840, 32383), (19928, 32240), (21359, 30080), (22048, 29140), (23312, 27560), (24440, 26288), (24910, 25792)]