858384020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3301477}}^1$

素因数の和:3301499

約数の個数: 24

約数和(自身を含む): 1941269064

約数和(自身を除く): 1082885044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3301477, 6602954, 13205908, 16507385, 33014770, 42919201, 66029540, 85838402, 171676804, 214596005, 429192010, 858384020]

約数ペア:

[(1, 858384020), (2, 429192010), (4, 214596005), (5, 171676804), (10, 85838402), (13, 66029540), (20, 42919201), (26, 33014770), (52, 16507385), (65, 13205908), (130, 6602954), (260, 3301477)]