2490475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 3402560

約数和(自身を除く): 912085

約数列:

[1, 5, 13, 25, 65, 79, 97, 325, 395, 485, 1027, 1261, 1975, 2425, 5135, 6305, 7663, 25675, 31525, 38315, 99619, 191575, 498095, 2490475]

約数ペア:

[(1, 2490475), (5, 498095), (13, 191575), (25, 99619), (65, 38315), (79, 31525), (97, 25675), (325, 7663), (395, 6305), (485, 5135), (1027, 2425), (1261, 1975)]