145749640

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{6967}}^1$

素因数の和:7501

約数の個数: 32

約数和(自身を含む): 328610880

約数和(自身を除く): 182861240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 6967, 10460, 13934, 20920, 27868, 34835, 55736, 69670, 139340, 278680, 3643741, 7287482, 14574964, 18218705, 29149928, 36437410, 72874820, 145749640]

約数ペア:

[(1, 145749640), (2, 72874820), (4, 36437410), (5, 29149928), (8, 18218705), (10, 14574964), (20, 7287482), (40, 3643741), (523, 278680), (1046, 139340), (2092, 69670), (2615, 55736), (4184, 34835), (5230, 27868), (6967, 20920), (10460, 13934)]