90872005

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1373}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 130848768

約数和(自身を除く): 39976763

約数列:

[1, 5, 7, 31, 35, 61, 155, 217, 305, 427, 1085, 1373, 1891, 2135, 6865, 9455, 9611, 13237, 42563, 48055, 66185, 83753, 212815, 297941, 418765, 586271, 1489705, 2596343, 2931355, 12981715, 18174401, 90872005]

約数ペア:

[(1, 90872005), (5, 18174401), (7, 12981715), (31, 2931355), (35, 2596343), (61, 1489705), (155, 586271), (217, 418765), (305, 297941), (427, 212815), (1085, 83753), (1373, 66185), (1891, 48055), (2135, 42563), (6865, 13237), (9455, 9611)]