172420520

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{12007}}^1$

素因数の和:12377

約数の個数: 32

約数和(自身を含む): 389059200

約数和(自身を除く): 216638680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 7180, 12007, 14360, 24014, 48028, 60035, 96056, 120070, 240140, 480280, 4310513, 8621026, 17242052, 21552565, 34484104, 43105130, 86210260, 172420520]

約数ペア:

[(1, 172420520), (2, 86210260), (4, 43105130), (5, 34484104), (8, 21552565), (10, 17242052), (20, 8621026), (40, 4310513), (359, 480280), (718, 240140), (1436, 120070), (1795, 96056), (2872, 60035), (3590, 48028), (7180, 24014), (12007, 14360)]