2018421925

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{20771}}^1$

素因数の和:20830

約数の個数: 36

約数和(自身を含む): 2828149344

約数和(自身を除く): 809727419

約数列:

[1, 5, 13, 23, 25, 65, 115, 169, 299, 325, 575, 845, 1495, 3887, 4225, 7475, 19435, 20771, 97175, 103855, 270023, 477733, 519275, 1350115, 2388665, 3510299, 6210529, 6750575, 11943325, 17551495, 31052645, 80736877, 87757475, 155263225, 403684385, 2018421925]

約数ペア:

[(1, 2018421925), (5, 403684385), (13, 155263225), (23, 87757475), (25, 80736877), (65, 31052645), (115, 17551495), (169, 11943325), (299, 6750575), (325, 6210529), (575, 3510299), (845, 2388665), (1495, 1350115), (3887, 519275), (4225, 477733), (7475, 270023), (19435, 103855), (20771, 97175)]