11997680

素因数分解:

$2^4\times 5^1\times {\mathrm{149971}}^1$

素因数の和:149984

約数の個数: 20

約数和(自身を含む): 27894792

約数和(自身を除く): 15897112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149971, 299942, 599884, 749855, 1199768, 1499710, 2399536, 2999420, 5998840, 11997680]

約数ペア:

[(1, 11997680), (2, 5998840), (4, 2999420), (5, 2399536), (8, 1499710), (10, 1199768), (16, 749855), (20, 599884), (40, 299942), (80, 149971)]