20155249075

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2000521}}^1$

素因数の和:2000575

約数の個数: 24

約数和(自身を含む): 27783249536

約数和(自身を除く): 7628000461

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 2015, 10075, 2000521, 10002605, 26006773, 50013025, 62016151, 130033865, 310080755, 650169325, 806209963, 1550403775, 4031049815, 20155249075]

約数ペア:

[(1, 20155249075), (5, 4031049815), (13, 1550403775), (25, 806209963), (31, 650169325), (65, 310080755), (155, 130033865), (325, 62016151), (403, 50013025), (775, 26006773), (2015, 10002605), (10075, 2000521)]