618304240

素因数分解:

$2^4\times 5^1\times {\mathrm{7728803}}^1$

素因数の和:7728816

約数の個数: 20

約数和(自身を含む): 1437557544

約数和(自身を除く): 819253304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 7728803, 15457606, 30915212, 38644015, 61830424, 77288030, 123660848, 154576060, 309152120, 618304240]

約数ペア:

[(1, 618304240), (2, 309152120), (4, 154576060), (5, 123660848), (8, 77288030), (10, 61830424), (16, 38644015), (20, 30915212), (40, 15457606), (80, 7728803)]