61680280

素因数分解:

$2^3\times 5^1\times {\mathrm{1542007}}^1$

素因数の和:1542018

約数の個数: 16

約数和(自身を含む): 138780720

約数和(自身を除く): 77100440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1542007, 3084014, 6168028, 7710035, 12336056, 15420070, 30840140, 61680280]

約数ペア:

[(1, 61680280), (2, 30840140), (4, 15420070), (5, 12336056), (8, 7710035), (10, 6168028), (20, 3084014), (40, 1542007)]