551420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 1176000

約数和(自身を除く): 624580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 349, 395, 698, 790, 1396, 1580, 1745, 3490, 6980, 27571, 55142, 110284, 137855, 275710, 551420]

約数ペア:

[(1, 551420), (2, 275710), (4, 137855), (5, 110284), (10, 55142), (20, 27571), (79, 6980), (158, 3490), (316, 1745), (349, 1580), (395, 1396), (698, 790)]