156717820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{21121}}^1$

素因数の和:21190

約数の個数: 48

約数和(自身を含む): 383237568

約数和(自身を除く): 226519748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 3710, 7420, 21121, 42242, 84484, 105605, 147847, 211210, 295694, 422420, 591388, 739235, 1119413, 1478470, 2238826, 2956940, 4477652, 5597065, 7835891, 11194130, 15671782, 22388260, 31343564, 39179455, 78358910, 156717820]

約数ペア:

[(1, 156717820), (2, 78358910), (4, 39179455), (5, 31343564), (7, 22388260), (10, 15671782), (14, 11194130), (20, 7835891), (28, 5597065), (35, 4477652), (53, 2956940), (70, 2238826), (106, 1478470), (140, 1119413), (212, 739235), (265, 591388), (371, 422420), (530, 295694), (742, 211210), (1060, 147847), (1484, 105605), (1855, 84484), (3710, 42242), (7420, 21121)]