31531216

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:611

約数の個数: 40

約数和(自身を含む): 63630848

約数和(自身を除く): 32099632

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 151, 248, 302, 421, 496, 604, 842, 1208, 1684, 2416, 3368, 4681, 6736, 9362, 13051, 18724, 26102, 37448, 52204, 63571, 74896, 104408, 127142, 208816, 254284, 508568, 1017136, 1970701, 3941402, 7882804, 15765608, 31531216]

約数ペア:

[(1, 31531216), (2, 15765608), (4, 7882804), (8, 3941402), (16, 1970701), (31, 1017136), (62, 508568), (124, 254284), (151, 208816), (248, 127142), (302, 104408), (421, 74896), (496, 63571), (604, 52204), (842, 37448), (1208, 26102), (1684, 18724), (2416, 13051), (3368, 9362), (4681, 6736)]