1320409900

素因数分解:

$2^2\times 5^2\times {\mathrm{2371}}^1\times {\mathrm{5569}}^1$

素因数の和:7954

約数の個数: 36

約数和(自身を含む): 2867012680

約数和(自身を除く): 1546602780

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2371, 4742, 5569, 9484, 11138, 11855, 22276, 23710, 27845, 47420, 55690, 59275, 111380, 118550, 139225, 237100, 278450, 556900, 13204099, 26408198, 52816396, 66020495, 132040990, 264081980, 330102475, 660204950, 1320409900]

約数ペア:

[(1, 1320409900), (2, 660204950), (4, 330102475), (5, 264081980), (10, 132040990), (20, 66020495), (25, 52816396), (50, 26408198), (100, 13204099), (2371, 556900), (4742, 278450), (5569, 237100), (9484, 139225), (11138, 118550), (11855, 111380), (22276, 59275), (23710, 55690), (27845, 47420)]