1981004160

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{401}}^1$

素因数の和:537

約数の個数: 256

約数和(自身を含む): 6613125120

約数和(自身を除く): 4632120960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 83, 93, 96, 120, 124, 128, 155, 160, 166, 186, 192, 240, 248, 249, 310, 320, 332, 372, 384, 401, 415, 465, 480, 496, 498, 620, 640, 664, 744, 802, 830, 930, 960, 992, 996, 1203, 1240, 1245, 1328, 1488, 1604, 1660, 1860, 1920, 1984, 1992, 2005, 2406, 2480, 2490, 2573, 2656, 2976, 3208, 3320, 3720, 3968, 3984, 4010, 4812, 4960, 4980, 5146, 5312, 5952, 6015, 6416, 6640, 7440, 7719, 7968, 8020, 9624, 9920, 9960, 10292, 10624, 11904, 12030, 12431, 12832, 12865, 13280, 14880, 15438, 15936, 16040, 19248, 19840, 19920, 20584, 24060, 24862, 25664, 25730, 26560, 29760, 30876, 31872, 32080, 33283, 37293, 38496, 38595, 39840, 41168, 48120, 49724, 51328, 51460, 53120, 59520, 61752, 62155, 64160, 66566, 74586, 76992, 77190, 79680, 82336, 96240, 99448, 99849, 102920, 123504, 124310, 128320, 133132, 149172, 153984, 154380, 159360, 164672, 166415, 186465, 192480, 198896, 199698, 205840, 247008, 248620, 256640, 266264, 298344, 308760, 329344, 332830, 372930, 384960, 397792, 399396, 411680, 494016, 497240, 499245, 532528, 596688, 617520, 665660, 745860, 769920, 795584, 798792, 823360, 988032, 994480, 998490, 1031773, 1065056, 1193376, 1235040, 1331320, 1491720, 1591168, 1597584, 1646720, 1988960, 1996980, 2063546, 2130112, 2386752, 2470080, 2662640, 2983440, 3095319, 3195168, 3977920, 3993960, 4127092, 4260224, 4773504, 4940160, 5158865, 5325280, 5966880, 6190638, 6390336, 7955840, 7987920, 8254184, 10317730, 10650560, 11933760, 12381276, 12780672, 15476595, 15975840, 16508368, 20635460, 21301120, 23867520, 24762552, 30953190, 31951680, 33016736, 41270920, 49525104, 61906380, 63903360, 66033472, 82541840, 99050208, 123812760, 132066944, 165083680, 198100416, 247625520, 330167360, 396200832, 495251040, 660334720, 990502080, 1981004160]

約数ペア:

[(1, 1981004160), (2, 990502080), (3, 660334720), (4, 495251040), (5, 396200832), (6, 330167360), (8, 247625520), (10, 198100416), (12, 165083680), (15, 132066944), (16, 123812760), (20, 99050208), (24, 82541840), (30, 66033472), (31, 63903360), (32, 61906380), (40, 49525104), (48, 41270920), (60, 33016736), (62, 31951680), (64, 30953190), (80, 24762552), (83, 23867520), (93, 21301120), (96, 20635460), (120, 16508368), (124, 15975840), (128, 15476595), (155, 12780672), (160, 12381276), (166, 11933760), (186, 10650560), (192, 10317730), (240, 8254184), (248, 7987920), (249, 7955840), (310, 6390336), (320, 6190638), (332, 5966880), (372, 5325280), (384, 5158865), (401, 4940160), (415, 4773504), (465, 4260224), (480, 4127092), (496, 3993960), (498, 3977920), (620, 3195168), (640, 3095319), (664, 2983440), (744, 2662640), (802, 2470080), (830, 2386752), (930, 2130112), (960, 2063546), (992, 1996980), (996, 1988960), (1203, 1646720), (1240, 1597584), (1245, 1591168), (1328, 1491720), (1488, 1331320), (1604, 1235040), (1660, 1193376), (1860, 1065056), (1920, 1031773), (1984, 998490), (1992, 994480), (2005, 988032), (2406, 823360), (2480, 798792), (2490, 795584), (2573, 769920), (2656, 745860), (2976, 665660), (3208, 617520), (3320, 596688), (3720, 532528), (3968, 499245), (3984, 497240), (4010, 494016), (4812, 411680), (4960, 399396), (4980, 397792), (5146, 384960), (5312, 372930), (5952, 332830), (6015, 329344), (6416, 308760), (6640, 298344), (7440, 266264), (7719, 256640), (7968, 248620), (8020, 247008), (9624, 205840), (9920, 199698), (9960, 198896), (10292, 192480), (10624, 186465), (11904, 166415), (12030, 164672), (12431, 159360), (12832, 154380), (12865, 153984), (13280, 149172), (14880, 133132), (15438, 128320), (15936, 124310), (16040, 123504), (19248, 102920), (19840, 99849), (19920, 99448), (20584, 96240), (24060, 82336), (24862, 79680), (25664, 77190), (25730, 76992), (26560, 74586), (29760, 66566), (30876, 64160), (31872, 62155), (32080, 61752), (33283, 59520), (37293, 53120), (38496, 51460), (38595, 51328), (39840, 49724), (41168, 48120)]