261828480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:189

約数の個数: 256

約数和(自身を含む): 888330240

約数和(自身を除く): 626501760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 53, 60, 62, 64, 80, 83, 93, 96, 106, 120, 124, 128, 155, 159, 160, 166, 186, 192, 212, 240, 248, 249, 265, 310, 318, 320, 332, 372, 384, 415, 424, 465, 480, 496, 498, 530, 620, 636, 640, 664, 744, 795, 830, 848, 930, 960, 992, 996, 1060, 1240, 1245, 1272, 1328, 1488, 1590, 1643, 1660, 1696, 1860, 1920, 1984, 1992, 2120, 2480, 2490, 2544, 2573, 2656, 2976, 3180, 3286, 3320, 3392, 3720, 3968, 3984, 4240, 4399, 4929, 4960, 4980, 5088, 5146, 5312, 5952, 6360, 6572, 6640, 6784, 7440, 7719, 7968, 8215, 8480, 8798, 9858, 9920, 9960, 10176, 10292, 10624, 11904, 12720, 12865, 13144, 13197, 13280, 14880, 15438, 15936, 16430, 16960, 17596, 19716, 19840, 19920, 20352, 20584, 21995, 24645, 25440, 25730, 26288, 26394, 26560, 29760, 30876, 31872, 32860, 33920, 35192, 38595, 39432, 39840, 41168, 43990, 49290, 50880, 51460, 52576, 52788, 53120, 59520, 61752, 65720, 65985, 70384, 77190, 78864, 79680, 82336, 87980, 98580, 101760, 102920, 105152, 105576, 123504, 131440, 131970, 136369, 140768, 154380, 157728, 159360, 164672, 175960, 197160, 205840, 210304, 211152, 247008, 262880, 263940, 272738, 281536, 308760, 315456, 329344, 351920, 394320, 409107, 411680, 422304, 494016, 525760, 527880, 545476, 563072, 617520, 630912, 681845, 703840, 788640, 818214, 823360, 844608, 988032, 1051520, 1055760, 1090952, 1235040, 1363690, 1407680, 1577280, 1636428, 1646720, 1689216, 2045535, 2111520, 2181904, 2470080, 2727380, 2815360, 3154560, 3272856, 4091070, 4223040, 4363808, 4940160, 5454760, 6545712, 8182140, 8446080, 8727616, 10909520, 13091424, 16364280, 17455232, 21819040, 26182848, 32728560, 43638080, 52365696, 65457120, 87276160, 130914240, 261828480]

約数ペア:

[(1, 261828480), (2, 130914240), (3, 87276160), (4, 65457120), (5, 52365696), (6, 43638080), (8, 32728560), (10, 26182848), (12, 21819040), (15, 17455232), (16, 16364280), (20, 13091424), (24, 10909520), (30, 8727616), (31, 8446080), (32, 8182140), (40, 6545712), (48, 5454760), (53, 4940160), (60, 4363808), (62, 4223040), (64, 4091070), (80, 3272856), (83, 3154560), (93, 2815360), (96, 2727380), (106, 2470080), (120, 2181904), (124, 2111520), (128, 2045535), (155, 1689216), (159, 1646720), (160, 1636428), (166, 1577280), (186, 1407680), (192, 1363690), (212, 1235040), (240, 1090952), (248, 1055760), (249, 1051520), (265, 988032), (310, 844608), (318, 823360), (320, 818214), (332, 788640), (372, 703840), (384, 681845), (415, 630912), (424, 617520), (465, 563072), (480, 545476), (496, 527880), (498, 525760), (530, 494016), (620, 422304), (636, 411680), (640, 409107), (664, 394320), (744, 351920), (795, 329344), (830, 315456), (848, 308760), (930, 281536), (960, 272738), (992, 263940), (996, 262880), (1060, 247008), (1240, 211152), (1245, 210304), (1272, 205840), (1328, 197160), (1488, 175960), (1590, 164672), (1643, 159360), (1660, 157728), (1696, 154380), (1860, 140768), (1920, 136369), (1984, 131970), (1992, 131440), (2120, 123504), (2480, 105576), (2490, 105152), (2544, 102920), (2573, 101760), (2656, 98580), (2976, 87980), (3180, 82336), (3286, 79680), (3320, 78864), (3392, 77190), (3720, 70384), (3968, 65985), (3984, 65720), (4240, 61752), (4399, 59520), (4929, 53120), (4960, 52788), (4980, 52576), (5088, 51460), (5146, 50880), (5312, 49290), (5952, 43990), (6360, 41168), (6572, 39840), (6640, 39432), (6784, 38595), (7440, 35192), (7719, 33920), (7968, 32860), (8215, 31872), (8480, 30876), (8798, 29760), (9858, 26560), (9920, 26394), (9960, 26288), (10176, 25730), (10292, 25440), (10624, 24645), (11904, 21995), (12720, 20584), (12865, 20352), (13144, 19920), (13197, 19840), (13280, 19716), (14880, 17596), (15438, 16960), (15936, 16430)]