90025780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1913}}^1$

素因数の和:2116

約数の個数: 48

約数和(自身を含む): 204828624

約数和(自身を除く): 114802844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1810, 1913, 2353, 3620, 3826, 4706, 7652, 9412, 9565, 11765, 19130, 23530, 24869, 38260, 47060, 49738, 99476, 124345, 248690, 346253, 497380, 692506, 1385012, 1731265, 3462530, 4501289, 6925060, 9002578, 18005156, 22506445, 45012890, 90025780]

約数ペア:

[(1, 90025780), (2, 45012890), (4, 22506445), (5, 18005156), (10, 9002578), (13, 6925060), (20, 4501289), (26, 3462530), (52, 1731265), (65, 1385012), (130, 692506), (181, 497380), (260, 346253), (362, 248690), (724, 124345), (905, 99476), (1810, 49738), (1913, 47060), (2353, 38260), (3620, 24869), (3826, 23530), (4706, 19130), (7652, 11765), (9412, 9565)]