3997175

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1$

素因数の和:288

約数の個数: 36

約数和(自身を含む): 6233976

約数和(自身を除く): 2236801

約数列:

[1, 5, 7, 13, 25, 35, 49, 65, 91, 175, 245, 251, 325, 455, 637, 1225, 1255, 1757, 2275, 3185, 3263, 6275, 8785, 12299, 15925, 16315, 22841, 43925, 61495, 81575, 114205, 159887, 307475, 571025, 799435, 3997175]

約数ペア:

[(1, 3997175), (5, 799435), (7, 571025), (13, 307475), (25, 159887), (35, 114205), (49, 81575), (65, 61495), (91, 43925), (175, 22841), (245, 16315), (251, 15925), (325, 12299), (455, 8785), (637, 6275), (1225, 3263), (1255, 3185), (1757, 2275)]