31120808

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:605

約数の個数: 32

約数和(自身を含む): 59697000

約数和(自身を除く): 28576192

約数列:

[1, 2, 4, 8, 89, 109, 178, 218, 356, 401, 436, 712, 802, 872, 1604, 3208, 9701, 19402, 35689, 38804, 43709, 71378, 77608, 87418, 142756, 174836, 285512, 349672, 3890101, 7780202, 15560404, 31120808]

約数ペア:

[(1, 31120808), (2, 15560404), (4, 7780202), (8, 3890101), (89, 349672), (109, 285512), (178, 174836), (218, 142756), (356, 87418), (401, 77608), (436, 71378), (712, 43709), (802, 38804), (872, 35689), (1604, 19402), (3208, 9701)]