21907280880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1\times {\mathrm{1999}}^1$

素因数の和:2540

約数の個数: 240

約数和(自身を含む): 76137984000

約数和(自身を除く): 54230703120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 120, 124, 144, 155, 180, 186, 240, 248, 279, 310, 360, 372, 465, 491, 496, 558, 620, 720, 744, 930, 982, 1116, 1240, 1395, 1473, 1488, 1860, 1964, 1999, 2232, 2455, 2480, 2790, 2946, 3720, 3928, 3998, 4419, 4464, 4910, 5580, 5892, 5997, 7365, 7440, 7856, 7996, 8838, 9820, 9995, 11160, 11784, 11994, 14730, 15221, 15992, 17676, 17991, 19640, 19990, 22095, 22320, 23568, 23988, 29460, 29985, 30442, 31984, 35352, 35982, 39280, 39980, 44190, 45663, 47976, 58920, 59970, 60884, 61969, 70704, 71964, 76105, 79960, 88380, 89955, 91326, 95952, 117840, 119940, 121768, 123938, 136989, 143928, 152210, 159920, 176760, 179910, 182652, 185907, 228315, 239880, 243536, 247876, 273978, 287856, 304420, 309845, 353520, 359820, 365304, 371814, 456630, 479760, 495752, 547956, 557721, 608840, 619690, 684945, 719640, 730608, 743628, 913260, 929535, 981509, 991504, 1095912, 1115442, 1217680, 1239380, 1369890, 1439280, 1487256, 1826520, 1859070, 1963018, 2191824, 2230884, 2478760, 2739780, 2788605, 2944527, 2974512, 3653040, 3718140, 3926036, 4461768, 4907545, 4957520, 5479560, 5577210, 5889054, 7436280, 7852072, 8833581, 8923536, 9815090, 10959120, 11154420, 11778108, 14722635, 14872560, 15704144, 17667162, 19630180, 22308840, 23556216, 29445270, 30426779, 35334324, 39260360, 44167905, 44617680, 47112432, 58890540, 60853558, 70668648, 78520720, 88335810, 91280337, 117781080, 121707116, 141337296, 152133895, 176671620, 182560674, 235562160, 243414232, 273841011, 304267790, 353343240, 365121348, 456401685, 486828464, 547682022, 608535580, 706686480, 730242696, 912803370, 1095364044, 1217071160, 1369205055, 1460485392, 1825606740, 2190728088, 2434142320, 2738410110, 3651213480, 4381456176, 5476820220, 7302426960, 10953640440, 21907280880]

約数ペア:

[(1, 21907280880), (2, 10953640440), (3, 7302426960), (4, 5476820220), (5, 4381456176), (6, 3651213480), (8, 2738410110), (9, 2434142320), (10, 2190728088), (12, 1825606740), (15, 1460485392), (16, 1369205055), (18, 1217071160), (20, 1095364044), (24, 912803370), (30, 730242696), (31, 706686480), (36, 608535580), (40, 547682022), (45, 486828464), (48, 456401685), (60, 365121348), (62, 353343240), (72, 304267790), (80, 273841011), (90, 243414232), (93, 235562160), (120, 182560674), (124, 176671620), (144, 152133895), (155, 141337296), (180, 121707116), (186, 117781080), (240, 91280337), (248, 88335810), (279, 78520720), (310, 70668648), (360, 60853558), (372, 58890540), (465, 47112432), (491, 44617680), (496, 44167905), (558, 39260360), (620, 35334324), (720, 30426779), (744, 29445270), (930, 23556216), (982, 22308840), (1116, 19630180), (1240, 17667162), (1395, 15704144), (1473, 14872560), (1488, 14722635), (1860, 11778108), (1964, 11154420), (1999, 10959120), (2232, 9815090), (2455, 8923536), (2480, 8833581), (2790, 7852072), (2946, 7436280), (3720, 5889054), (3928, 5577210), (3998, 5479560), (4419, 4957520), (4464, 4907545), (4910, 4461768), (5580, 3926036), (5892, 3718140), (5997, 3653040), (7365, 2974512), (7440, 2944527), (7856, 2788605), (7996, 2739780), (8838, 2478760), (9820, 2230884), (9995, 2191824), (11160, 1963018), (11784, 1859070), (11994, 1826520), (14730, 1487256), (15221, 1439280), (15992, 1369890), (17676, 1239380), (17991, 1217680), (19640, 1115442), (19990, 1095912), (22095, 991504), (22320, 981509), (23568, 929535), (23988, 913260), (29460, 743628), (29985, 730608), (30442, 719640), (31984, 684945), (35352, 619690), (35982, 608840), (39280, 557721), (39980, 547956), (44190, 495752), (45663, 479760), (47976, 456630), (58920, 371814), (59970, 365304), (60884, 359820), (61969, 353520), (70704, 309845), (71964, 304420), (76105, 287856), (79960, 273978), (88380, 247876), (89955, 243536), (91326, 239880), (95952, 228315), (117840, 185907), (119940, 182652), (121768, 179910), (123938, 176760), (136989, 159920), (143928, 152210)]