155115830

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{1109}}^1$

素因数の和:1384

約数の個数: 32

約数和(自身を含む): 284834880

約数和(自身を除く): 129719050

約数列:

[1, 2, 5, 10, 71, 142, 197, 355, 394, 710, 985, 1109, 1970, 2218, 5545, 11090, 13987, 27974, 69935, 78739, 139870, 157478, 218473, 393695, 436946, 787390, 1092365, 2184730, 15511583, 31023166, 77557915, 155115830]

約数ペア:

[(1, 155115830), (2, 77557915), (5, 31023166), (10, 15511583), (71, 2184730), (142, 1092365), (197, 787390), (355, 436946), (394, 393695), (710, 218473), (985, 157478), (1109, 139870), (1970, 78739), (2218, 69935), (5545, 27974), (11090, 13987)]