66405440

素因数分解:

$2^6\times 5^1\times {\mathrm{207517}}^1$

素因数の和:207534

約数の個数: 28

約数和(自身を含む): 158128716

約数和(自身を除く): 91723276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 207517, 415034, 830068, 1037585, 1660136, 2075170, 3320272, 4150340, 6640544, 8300680, 13281088, 16601360, 33202720, 66405440]

約数ペア:

[(1, 66405440), (2, 33202720), (4, 16601360), (5, 13281088), (8, 8300680), (10, 6640544), (16, 4150340), (20, 3320272), (32, 2075170), (40, 1660136), (64, 1037585), (80, 830068), (160, 415034), (320, 207517)]