405014780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{135911}}^1$

素因数の和:136069

約数の個数: 24

約数和(自身を含む): 856245600

約数和(自身を除く): 451230820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 135911, 271822, 543644, 679555, 1359110, 2718220, 20250739, 40501478, 81002956, 101253695, 202507390, 405014780]

約数ペア:

[(1, 405014780), (2, 202507390), (4, 101253695), (5, 81002956), (10, 40501478), (20, 20250739), (149, 2718220), (298, 1359110), (596, 679555), (745, 543644), (1490, 271822), (2980, 135911)]