28642040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102293}}^1$

素因数の和:102311

約数の個数: 32

約数和(自身を含む): 73651680

約数和(自身を除く): 45009640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102293, 204586, 409172, 511465, 716051, 818344, 1022930, 1432102, 2045860, 2864204, 3580255, 4091720, 5728408, 7160510, 14321020, 28642040]

約数ペア:

[(1, 28642040), (2, 14321020), (4, 7160510), (5, 5728408), (7, 4091720), (8, 3580255), (10, 2864204), (14, 2045860), (20, 1432102), (28, 1022930), (35, 818344), (40, 716051), (56, 511465), (70, 409172), (140, 204586), (280, 102293)]