20807727820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1\times {\mathrm{2243}}^1$

素因数の和:2695

約数の個数: 96

約数和(自身を含む): 48179577600

約数和(自身を除く): 27371849780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 283, 298, 566, 596, 745, 1132, 1415, 1490, 1639, 2243, 2830, 2980, 3113, 3278, 4486, 5660, 6226, 6556, 8195, 8972, 11215, 12452, 15565, 16390, 22430, 24673, 31130, 32780, 42167, 44860, 49346, 62260, 84334, 98692, 123365, 168668, 210835, 246730, 334207, 421670, 463837, 493460, 634769, 668414, 843340, 927674, 1269538, 1336828, 1671035, 1855348, 2319185, 2539076, 3173845, 3342070, 3676277, 4638370, 6347690, 6684140, 6982459, 7352554, 9276740, 12695380, 13964918, 14705108, 18381385, 27929836, 34912295, 36762770, 69824590, 73525540, 94580581, 139649180, 189161162, 378322324, 472902905, 945805810, 1040386391, 1891611620, 2080772782, 4161545564, 5201931955, 10403863910, 20807727820]

約数ペア:

[(1, 20807727820), (2, 10403863910), (4, 5201931955), (5, 4161545564), (10, 2080772782), (11, 1891611620), (20, 1040386391), (22, 945805810), (44, 472902905), (55, 378322324), (110, 189161162), (149, 139649180), (220, 94580581), (283, 73525540), (298, 69824590), (566, 36762770), (596, 34912295), (745, 27929836), (1132, 18381385), (1415, 14705108), (1490, 13964918), (1639, 12695380), (2243, 9276740), (2830, 7352554), (2980, 6982459), (3113, 6684140), (3278, 6347690), (4486, 4638370), (5660, 3676277), (6226, 3342070), (6556, 3173845), (8195, 2539076), (8972, 2319185), (11215, 1855348), (12452, 1671035), (15565, 1336828), (16390, 1269538), (22430, 927674), (24673, 843340), (31130, 668414), (32780, 634769), (42167, 493460), (44860, 463837), (49346, 421670), (62260, 334207), (84334, 246730), (98692, 210835), (123365, 168668)]