405765260

素因数分解:

$2^2\times 5^1\times {\mathrm{2251}}^1\times {\mathrm{9013}}^1$

素因数の和:11273

約数の個数: 24

約数和(自身を含む): 852580176

約数和(自身を除く): 446814916

約数列:

[1, 2, 4, 5, 10, 20, 2251, 4502, 9004, 9013, 11255, 18026, 22510, 36052, 45020, 45065, 90130, 180260, 20288263, 40576526, 81153052, 101441315, 202882630, 405765260]

約数ペア:

[(1, 405765260), (2, 202882630), (4, 101441315), (5, 81153052), (10, 40576526), (20, 20288263), (2251, 180260), (4502, 90130), (9004, 45065), (9013, 45020), (11255, 36052), (18026, 22510)]