20148178

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:993

約数の個数: 16

約数和(自身を含む): 30890880

約数和(自身を除く): 10742702

約数列:

[1, 2, 61, 122, 239, 478, 691, 1382, 14579, 29158, 42151, 84302, 165149, 330298, 10074089, 20148178]

約数ペア:

[(1, 20148178), (2, 10074089), (61, 330298), (122, 165149), (239, 84302), (478, 42151), (691, 29158), (1382, 14579)]