428103664220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{690489781}}^1$

素因数の和:690489821

約数の個数: 24

約数和(自身を含む): 928018267008

約数和(自身を除く): 499914602788

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 690489781, 1380979562, 2761959124, 3452448905, 6904897810, 13809795620, 21405183211, 42810366422, 85620732844, 107025916055, 214051832110, 428103664220]

約数ペア:

[(1, 428103664220), (2, 214051832110), (4, 107025916055), (5, 85620732844), (10, 42810366422), (20, 21405183211), (31, 13809795620), (62, 6904897810), (124, 3452448905), (155, 2761959124), (310, 1380979562), (620, 690489781)]