81411010

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{3931}}^1$

素因数の和:4066

約数の個数: 32

約数和(自身を含む): 155707200

約数和(自身を除く): 74296190

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1090, 2071, 3931, 4142, 7862, 10355, 19655, 20710, 39310, 74689, 149378, 373445, 428479, 746890, 856958, 2142395, 4284790, 8141101, 16282202, 40705505, 81411010]

約数ペア:

[(1, 81411010), (2, 40705505), (5, 16282202), (10, 8141101), (19, 4284790), (38, 2142395), (95, 856958), (109, 746890), (190, 428479), (218, 373445), (545, 149378), (1090, 74689), (2071, 39310), (3931, 20710), (4142, 19655), (7862, 10355)]