409153040

素因数分解:

$2^4\times 5^1\times {\mathrm{5114413}}^1$

素因数の和:5114426

約数の個数: 20

約数和(自身を含む): 951281004

約数和(自身を除く): 542127964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5114413, 10228826, 20457652, 25572065, 40915304, 51144130, 81830608, 102288260, 204576520, 409153040]

約数ペア:

[(1, 409153040), (2, 204576520), (4, 102288260), (5, 81830608), (8, 51144130), (10, 40915304), (16, 25572065), (20, 20457652), (40, 10228826), (80, 5114413)]