145022140

素因数分解:

$2^2\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{3631}}^1$

素因数の和:5637

約数の個数: 24

約数和(自身を含む): 304782912

約数和(自身を除く): 159760772

約数列:

[1, 2, 4, 5, 10, 20, 1997, 3631, 3994, 7262, 7988, 9985, 14524, 18155, 19970, 36310, 39940, 72620, 7251107, 14502214, 29004428, 36255535, 72511070, 145022140]

約数ペア:

[(1, 145022140), (2, 72511070), (4, 36255535), (5, 29004428), (10, 14502214), (20, 7251107), (1997, 72620), (3631, 39940), (3994, 36310), (7262, 19970), (7988, 18155), (9985, 14524)]