50400025

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:266

約数の個数: 36

約数和(自身を含む): 68983680

約数和(自身を除く): 18583655

約数列:

[1, 5, 13, 25, 65, 79, 151, 169, 325, 395, 755, 845, 1027, 1963, 1975, 3775, 4225, 5135, 9815, 11929, 13351, 25519, 25675, 49075, 59645, 66755, 127595, 155077, 298225, 333775, 637975, 775385, 2016001, 3876925, 10080005, 50400025]

約数ペア:

[(1, 50400025), (5, 10080005), (13, 3876925), (25, 2016001), (65, 775385), (79, 637975), (151, 333775), (169, 298225), (325, 155077), (395, 127595), (755, 66755), (845, 59645), (1027, 49075), (1963, 25675), (1975, 25519), (3775, 13351), (4225, 11929), (5135, 9815)]