208170815

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 267636096

約数和(自身を除く): 59465281

約数列:

[1, 5, 23, 73, 115, 137, 181, 365, 685, 905, 1679, 3151, 4163, 8395, 10001, 13213, 15755, 20815, 24797, 50005, 66065, 123985, 230023, 303899, 570331, 1150115, 1519495, 1810181, 2851655, 9050905, 41634163, 208170815]

約数ペア:

[(1, 208170815), (5, 41634163), (23, 9050905), (73, 2851655), (115, 1810181), (137, 1519495), (181, 1150115), (365, 570331), (685, 303899), (905, 230023), (1679, 123985), (3151, 66065), (4163, 50005), (8395, 24797), (10001, 20815), (13213, 15755)]