20154095

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 29408832

約数和(自身を除く): 9254737

約数列:

[1, 5, 13, 17, 23, 61, 65, 85, 115, 169, 221, 299, 305, 391, 793, 845, 1037, 1105, 1403, 1495, 1955, 2873, 3887, 3965, 5083, 5185, 7015, 10309, 13481, 14365, 18239, 19435, 23851, 25415, 51545, 66079, 67405, 91195, 119255, 175253, 237107, 310063, 330395, 876265, 1185535, 1550315, 4030819, 20154095]

約数ペア:

[(1, 20154095), (5, 4030819), (13, 1550315), (17, 1185535), (23, 876265), (61, 330395), (65, 310063), (85, 237107), (115, 175253), (169, 119255), (221, 91195), (299, 67405), (305, 66079), (391, 51545), (793, 25415), (845, 23851), (1037, 19435), (1105, 18239), (1403, 14365), (1495, 13481), (1955, 10309), (2873, 7015), (3887, 5185), (3965, 5083)]