247728320

素因数分解:

$2^6\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 224

約数和(自身を含む): 718108800

約数和(自身を除く): 470380480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 61, 64, 70, 74, 80, 98, 112, 122, 140, 148, 160, 185, 196, 224, 244, 245, 259, 280, 296, 305, 320, 343, 370, 392, 427, 448, 488, 490, 518, 560, 592, 610, 686, 740, 784, 854, 976, 980, 1036, 1120, 1184, 1220, 1295, 1372, 1480, 1568, 1708, 1715, 1813, 1952, 1960, 2072, 2135, 2240, 2257, 2368, 2440, 2590, 2744, 2960, 2989, 3136, 3416, 3430, 3626, 3904, 3920, 4144, 4270, 4514, 4880, 5180, 5488, 5920, 5978, 6832, 6860, 7252, 7840, 8288, 8540, 9028, 9065, 9760, 10360, 10976, 11285, 11840, 11956, 12691, 13664, 13720, 14504, 14945, 15680, 15799, 16576, 17080, 18056, 18130, 19520, 20720, 20923, 21952, 22570, 23912, 25382, 27328, 27440, 29008, 29890, 31598, 34160, 36112, 36260, 41440, 41846, 45140, 47824, 50764, 54880, 58016, 59780, 63196, 63455, 68320, 72224, 72520, 78995, 82880, 83692, 90280, 95648, 101528, 104615, 109760, 110593, 116032, 119560, 126392, 126910, 136640, 144448, 145040, 157990, 167384, 180560, 191296, 203056, 209230, 221186, 239120, 252784, 253820, 290080, 315980, 334768, 361120, 406112, 418460, 442372, 478240, 505568, 507640, 552965, 580160, 631960, 669536, 722240, 774151, 812224, 836920, 884744, 956480, 1011136, 1015280, 1105930, 1263920, 1339072, 1548302, 1673840, 1769488, 2030560, 2211860, 2527840, 3096604, 3347680, 3538976, 3870755, 4061120, 4423720, 5055680, 6193208, 6695360, 7077952, 7741510, 8847440, 12386416, 15483020, 17694880, 24772832, 30966040, 35389760, 49545664, 61932080, 123864160, 247728320]

約数ペア:

[(1, 247728320), (2, 123864160), (4, 61932080), (5, 49545664), (7, 35389760), (8, 30966040), (10, 24772832), (14, 17694880), (16, 15483020), (20, 12386416), (28, 8847440), (32, 7741510), (35, 7077952), (37, 6695360), (40, 6193208), (49, 5055680), (56, 4423720), (61, 4061120), (64, 3870755), (70, 3538976), (74, 3347680), (80, 3096604), (98, 2527840), (112, 2211860), (122, 2030560), (140, 1769488), (148, 1673840), (160, 1548302), (185, 1339072), (196, 1263920), (224, 1105930), (244, 1015280), (245, 1011136), (259, 956480), (280, 884744), (296, 836920), (305, 812224), (320, 774151), (343, 722240), (370, 669536), (392, 631960), (427, 580160), (448, 552965), (488, 507640), (490, 505568), (518, 478240), (560, 442372), (592, 418460), (610, 406112), (686, 361120), (740, 334768), (784, 315980), (854, 290080), (976, 253820), (980, 252784), (1036, 239120), (1120, 221186), (1184, 209230), (1220, 203056), (1295, 191296), (1372, 180560), (1480, 167384), (1568, 157990), (1708, 145040), (1715, 144448), (1813, 136640), (1952, 126910), (1960, 126392), (2072, 119560), (2135, 116032), (2240, 110593), (2257, 109760), (2368, 104615), (2440, 101528), (2590, 95648), (2744, 90280), (2960, 83692), (2989, 82880), (3136, 78995), (3416, 72520), (3430, 72224), (3626, 68320), (3904, 63455), (3920, 63196), (4144, 59780), (4270, 58016), (4514, 54880), (4880, 50764), (5180, 47824), (5488, 45140), (5920, 41846), (5978, 41440), (6832, 36260), (6860, 36112), (7252, 34160), (7840, 31598), (8288, 29890), (8540, 29008), (9028, 27440), (9065, 27328), (9760, 25382), (10360, 23912), (10976, 22570), (11285, 21952), (11840, 20923), (11956, 20720), (12691, 19520), (13664, 18130), (13720, 18056), (14504, 17080), (14945, 16576), (15680, 15799)]