215460400

素因数分解:

$2^4\times 5^2\times {\mathrm{538651}}^1$

素因数の和:538669

約数の個数: 30

約数和(自身を含む): 517644572

約数和(自身を除く): 302184172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 538651, 1077302, 2154604, 2693255, 4309208, 5386510, 8618416, 10773020, 13466275, 21546040, 26932550, 43092080, 53865100, 107730200, 215460400]

約数ペア:

[(1, 215460400), (2, 107730200), (4, 53865100), (5, 43092080), (8, 26932550), (10, 21546040), (16, 13466275), (20, 10773020), (25, 8618416), (40, 5386510), (50, 4309208), (80, 2693255), (100, 2154604), (200, 1077302), (400, 538651)]