4005440

素因数分解:

$2^6\times 5^1\times {\mathrm{12517}}^1$

素因数の和:12534

約数の個数: 28

約数和(自身を含む): 9538716

約数和(自身を除く): 5533276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 12517, 25034, 50068, 62585, 100136, 125170, 200272, 250340, 400544, 500680, 801088, 1001360, 2002720, 4005440]

約数ペア:

[(1, 4005440), (2, 2002720), (4, 1001360), (5, 801088), (8, 500680), (10, 400544), (16, 250340), (20, 200272), (32, 125170), (40, 100136), (64, 62585), (80, 50068), (160, 25034), (320, 12517)]