640128303358

素因数分解:

$2^1\times {\mathrm{229}}^2\times {\mathrm{977}}^1\times {\mathrm{6247}}^1$

素因数の和:7684

約数の個数: 24

約数和(自身を含む): 965545389072

約数和(自身を除く): 325417085714

約数列:

[1, 2, 229, 458, 977, 1954, 6247, 12494, 52441, 104882, 223733, 447466, 1430563, 2861126, 6103319, 12206638, 51234857, 102469714, 327598927, 655197854, 1397660051, 2795320102, 320064151679, 640128303358]

約数ペア:

[(1, 640128303358), (2, 320064151679), (229, 2795320102), (458, 1397660051), (977, 655197854), (1954, 327598927), (6247, 102469714), (12494, 51234857), (52441, 12206638), (104882, 6103319), (223733, 2861126), (447466, 1430563)]