18880705

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2971}}^1$

素因数の和:3048

約数の個数: 16

約数和(自身を含む): 23966208

約数和(自身を除く): 5085503

約数列:

[1, 5, 31, 41, 155, 205, 1271, 2971, 6355, 14855, 92101, 121811, 460505, 609055, 3776141, 18880705]

約数ペア:

[(1, 18880705), (5, 3776141), (31, 609055), (41, 460505), (155, 121811), (205, 92101), (1271, 14855), (2971, 6355)]