19780690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5059}}^1$

素因数の和:5106

約数の個数: 32

約数和(自身を含む): 39346560

約数和(自身を除く): 19565870

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 85, 115, 170, 230, 391, 782, 1955, 3910, 5059, 10118, 25295, 50590, 86003, 116357, 172006, 232714, 430015, 581785, 860030, 1163570, 1978069, 3956138, 9890345, 19780690]

約数ペア:

[(1, 19780690), (2, 9890345), (5, 3956138), (10, 1978069), (17, 1163570), (23, 860030), (34, 581785), (46, 430015), (85, 232714), (115, 172006), (170, 116357), (230, 86003), (391, 50590), (782, 25295), (1955, 10118), (3910, 5059)]