129335410

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{991}}^1$

素因数の和:1450

約数の個数: 32

約数和(自身を含む): 241127424

約数和(自身を除く): 111792014

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 421, 842, 991, 1982, 2105, 4210, 4955, 9910, 13051, 26102, 30721, 61442, 65255, 130510, 153605, 307210, 417211, 834422, 2086055, 4172110, 12933541, 25867082, 64667705, 129335410]

約数ペア:

[(1, 129335410), (2, 64667705), (5, 25867082), (10, 12933541), (31, 4172110), (62, 2086055), (155, 834422), (310, 417211), (421, 307210), (842, 153605), (991, 130510), (1982, 65255), (2105, 61442), (4210, 30721), (4955, 26102), (9910, 13051)]