19661080

素因数分解:

$2^3\times 5^1\times {\mathrm{491527}}^1$

素因数の和:491538

約数の個数: 16

約数和(自身を含む): 44237520

約数和(自身を除く): 24576440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491527, 983054, 1966108, 2457635, 3932216, 4915270, 9830540, 19661080]

約数ペア:

[(1, 19661080), (2, 9830540), (4, 4915270), (5, 3932216), (8, 2457635), (10, 1966108), (20, 983054), (40, 491527)]