20185885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:501

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 7807715

約数列:

[1, 5, 17, 19, 29, 85, 95, 145, 323, 431, 493, 551, 1615, 2155, 2465, 2755, 7327, 8189, 9367, 12499, 36635, 40945, 46835, 62495, 139213, 212483, 237481, 696065, 1062415, 1187405, 4037177, 20185885]

約数ペア:

[(1, 20185885), (5, 4037177), (17, 1187405), (19, 1062415), (29, 696065), (85, 237481), (95, 212483), (145, 139213), (323, 62495), (431, 46835), (493, 40945), (551, 36635), (1615, 12499), (2155, 9367), (2465, 8189), (2755, 7327)]