156728411260

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2423}}^1\times {\mathrm{40939}}^1$

素因数の和:43450

約数の個数: 48

約数和(自身を含む): 333441561600

約数和(自身を除く): 176713150340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 2423, 4846, 9692, 12115, 24230, 40939, 48460, 81878, 163756, 191417, 204695, 382834, 409390, 765668, 818780, 957085, 1914170, 3234181, 3828340, 6468362, 12936724, 16170905, 32341810, 64683620, 99195197, 198390394, 396780788, 495975985, 991951970, 1983903940, 7836420563, 15672841126, 31345682252, 39182102815, 78364205630, 156728411260]

約数ペア:

[(1, 156728411260), (2, 78364205630), (4, 39182102815), (5, 31345682252), (10, 15672841126), (20, 7836420563), (79, 1983903940), (158, 991951970), (316, 495975985), (395, 396780788), (790, 198390394), (1580, 99195197), (2423, 64683620), (4846, 32341810), (9692, 16170905), (12115, 12936724), (24230, 6468362), (40939, 3828340), (48460, 3234181), (81878, 1914170), (163756, 957085), (191417, 818780), (204695, 765668), (382834, 409390)]