20050490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64679}}^1$

素因数の和:64717

約数の個数: 16

約数和(自身を含む): 37255680

約数和(自身を除く): 17205190

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 64679, 129358, 323395, 646790, 2005049, 4010098, 10025245, 20050490]

約数ペア:

[(1, 20050490), (2, 10025245), (5, 4010098), (10, 2005049), (31, 646790), (62, 323395), (155, 129358), (310, 64679)]