128423570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{997}}^1\times {\mathrm{1171}}^1$

素因数の和:2186

約数の個数: 32

約数和(自身を含む): 252645696

約数和(自身を除く): 124222126

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 997, 1171, 1994, 2342, 4985, 5855, 9970, 10967, 11710, 12881, 21934, 25762, 54835, 64405, 109670, 128810, 1167487, 2334974, 5837435, 11674870, 12842357, 25684714, 64211785, 128423570]

約数ペア:

[(1, 128423570), (2, 64211785), (5, 25684714), (10, 12842357), (11, 11674870), (22, 5837435), (55, 2334974), (110, 1167487), (997, 128810), (1171, 109670), (1994, 64405), (2342, 54835), (4985, 25762), (5855, 21934), (9970, 12881), (10967, 11710)]