68665775

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{2161}}^1$

素因数の和:2243

約数の個数: 24

約数和(自身を含む): 90077568

約数和(自身を除く): 21411793

約数列:

[1, 5, 25, 31, 41, 155, 205, 775, 1025, 1271, 2161, 6355, 10805, 31775, 54025, 66991, 88601, 334955, 443005, 1674775, 2215025, 2746631, 13733155, 68665775]

約数ペア:

[(1, 68665775), (5, 13733155), (25, 2746631), (31, 2215025), (41, 1674775), (155, 443005), (205, 334955), (775, 88601), (1025, 66991), (1271, 54025), (2161, 31775), (6355, 10805)]