17990425

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 23248512

約数和(自身を除く): 5258087

約数列:

[1, 5, 25, 47, 61, 235, 251, 305, 1175, 1255, 1525, 2867, 6275, 11797, 14335, 15311, 58985, 71675, 76555, 294925, 382775, 719617, 3598085, 17990425]

約数ペア:

[(1, 17990425), (5, 3598085), (25, 719617), (47, 382775), (61, 294925), (235, 76555), (251, 71675), (305, 58985), (1175, 15311), (1255, 14335), (1525, 11797), (2867, 6275)]