19976140

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8839}}^1$

素因数の和:8961

約数の個数: 24

約数和(自身を含む): 42325920

約数和(自身を除く): 22349780

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8839, 17678, 35356, 44195, 88390, 176780, 998807, 1997614, 3995228, 4994035, 9988070, 19976140]

約数ペア:

[(1, 19976140), (2, 9988070), (4, 4994035), (5, 3995228), (10, 1997614), (20, 998807), (113, 176780), (226, 88390), (452, 44195), (565, 35356), (1130, 17678), (2260, 8839)]