20161120325

素因数分解:

$5^2\times {\mathrm{313}}^1\times {\mathrm{643}}^1\times {\mathrm{4007}}^1$

素因数の和:4973

約数の個数: 24

約数和(自身を含む): 25124933568

約数和(自身を除く): 4963813243

約数列:

[1, 5, 25, 313, 643, 1565, 3215, 4007, 7825, 16075, 20035, 100175, 201259, 1006295, 1254191, 2576501, 5031475, 6270955, 12882505, 31354775, 64412525, 806444813, 4032224065, 20161120325]

約数ペア:

[(1, 20161120325), (5, 4032224065), (25, 806444813), (313, 64412525), (643, 31354775), (1565, 12882505), (3215, 6270955), (4007, 5031475), (7825, 2576501), (16075, 1254191), (20035, 1006295), (100175, 201259)]