20957070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9839}}^1$

素因数の和:9920

約数の個数: 32

約数和(自身を含む): 51010560

約数和(自身を除く): 30053490

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 9839, 19678, 29517, 49195, 59034, 98390, 147585, 295170, 698569, 1397138, 2095707, 3492845, 4191414, 6985690, 10478535, 20957070]

約数ペア:

[(1, 20957070), (2, 10478535), (3, 6985690), (5, 4191414), (6, 3492845), (10, 2095707), (15, 1397138), (30, 698569), (71, 295170), (142, 147585), (213, 98390), (355, 59034), (426, 49195), (710, 29517), (1065, 19678), (2130, 9839)]