247193715

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{3557}}^1$

素因数の和:3719

約数の個数: 32

約数和(自身を含む): 408856896

約数和(自身を除く): 161663181

約数列:

[1, 3, 5, 15, 41, 113, 123, 205, 339, 565, 615, 1695, 3557, 4633, 10671, 13899, 17785, 23165, 53355, 69495, 145837, 401941, 437511, 729185, 1205823, 2009705, 2187555, 6029115, 16479581, 49438743, 82397905, 247193715]

約数ペア:

[(1, 247193715), (3, 82397905), (5, 49438743), (15, 16479581), (41, 6029115), (113, 2187555), (123, 2009705), (205, 1205823), (339, 729185), (565, 437511), (615, 401941), (1695, 145837), (3557, 69495), (4633, 53355), (10671, 23165), (13899, 17785)]