2000018880

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9781}}^1$

素因数の和:9875

約数の個数: 168

約数和(自身を含む): 6976835424

約数和(自身を除く): 4976816544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 71, 72, 80, 90, 96, 120, 142, 144, 160, 180, 192, 213, 240, 284, 288, 320, 355, 360, 426, 480, 568, 576, 639, 710, 720, 852, 960, 1065, 1136, 1278, 1420, 1440, 1704, 2130, 2272, 2556, 2840, 2880, 3195, 3408, 4260, 4544, 5112, 5680, 6390, 6816, 8520, 9781, 10224, 11360, 12780, 13632, 17040, 19562, 20448, 22720, 25560, 29343, 34080, 39124, 40896, 48905, 51120, 58686, 68160, 78248, 88029, 97810, 102240, 117372, 146715, 156496, 176058, 195620, 204480, 234744, 293430, 312992, 352116, 391240, 440145, 469488, 586860, 625984, 694451, 704232, 782480, 880290, 938976, 1173720, 1388902, 1408464, 1564960, 1760580, 1877952, 2083353, 2347440, 2777804, 2816928, 3129920, 3472255, 3521160, 4166706, 4694880, 5555608, 5633856, 6250059, 6944510, 7042320, 8333412, 9389760, 10416765, 11111216, 12500118, 13889020, 14084640, 16666824, 20833530, 22222432, 25000236, 27778040, 28169280, 31250295, 33333648, 41667060, 44444864, 50000472, 55556080, 62500590, 66667296, 83334120, 100000944, 111112160, 125001180, 133334592, 166668240, 200001888, 222224320, 250002360, 333336480, 400003776, 500004720, 666672960, 1000009440, 2000018880]

約数ペア:

[(1, 2000018880), (2, 1000009440), (3, 666672960), (4, 500004720), (5, 400003776), (6, 333336480), (8, 250002360), (9, 222224320), (10, 200001888), (12, 166668240), (15, 133334592), (16, 125001180), (18, 111112160), (20, 100000944), (24, 83334120), (30, 66667296), (32, 62500590), (36, 55556080), (40, 50000472), (45, 44444864), (48, 41667060), (60, 33333648), (64, 31250295), (71, 28169280), (72, 27778040), (80, 25000236), (90, 22222432), (96, 20833530), (120, 16666824), (142, 14084640), (144, 13889020), (160, 12500118), (180, 11111216), (192, 10416765), (213, 9389760), (240, 8333412), (284, 7042320), (288, 6944510), (320, 6250059), (355, 5633856), (360, 5555608), (426, 4694880), (480, 4166706), (568, 3521160), (576, 3472255), (639, 3129920), (710, 2816928), (720, 2777804), (852, 2347440), (960, 2083353), (1065, 1877952), (1136, 1760580), (1278, 1564960), (1420, 1408464), (1440, 1388902), (1704, 1173720), (2130, 938976), (2272, 880290), (2556, 782480), (2840, 704232), (2880, 694451), (3195, 625984), (3408, 586860), (4260, 469488), (4544, 440145), (5112, 391240), (5680, 352116), (6390, 312992), (6816, 293430), (8520, 234744), (9781, 204480), (10224, 195620), (11360, 176058), (12780, 156496), (13632, 146715), (17040, 117372), (19562, 102240), (20448, 97810), (22720, 88029), (25560, 78248), (29343, 68160), (34080, 58686), (39124, 51120), (40896, 48905)]