7912990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{523}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 15279840

約数和(自身を除く): 7366850

約数列:

[1, 2, 5, 10, 17, 34, 85, 89, 170, 178, 445, 523, 890, 1046, 1513, 2615, 3026, 5230, 7565, 8891, 15130, 17782, 44455, 46547, 88910, 93094, 232735, 465470, 791299, 1582598, 3956495, 7912990]

約数ペア:

[(1, 7912990), (2, 3956495), (5, 1582598), (10, 791299), (17, 465470), (34, 232735), (85, 93094), (89, 88910), (170, 46547), (178, 44455), (445, 17782), (523, 15130), (890, 8891), (1046, 7565), (1513, 5230), (2615, 3026)]