3990490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:646

約数の個数: 32

約数和(自身を含む): 8300160

約数和(自身を除く): 4309670

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 523, 545, 763, 1046, 1090, 1526, 2615, 3661, 3815, 5230, 7322, 7630, 18305, 36610, 57007, 114014, 285035, 399049, 570070, 798098, 1995245, 3990490]

約数ペア:

[(1, 3990490), (2, 1995245), (5, 798098), (7, 570070), (10, 399049), (14, 285035), (35, 114014), (70, 57007), (109, 36610), (218, 18305), (523, 7630), (545, 7322), (763, 5230), (1046, 3815), (1090, 3661), (1526, 2615)]