74681960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{64381}}^1$

素因数の和:64421

約数の個数: 32

約数和(自身を含む): 173831400

約数和(自身を除く): 99149440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 64381, 128762, 257524, 321905, 515048, 643810, 1287620, 1867049, 2575240, 3734098, 7468196, 9335245, 14936392, 18670490, 37340980, 74681960]

約数ペア:

[(1, 74681960), (2, 37340980), (4, 18670490), (5, 14936392), (8, 9335245), (10, 7468196), (20, 3734098), (29, 2575240), (40, 1867049), (58, 1287620), (116, 643810), (145, 515048), (232, 321905), (290, 257524), (580, 128762), (1160, 64381)]