20115907960

素因数分解:

$2^3\times 5^1\times {\mathrm{19927}}^1\times {\mathrm{25237}}^1$

素因数の和:45175

約数の個数: 32

約数和(自身を含む): 45264857760

約数和(自身を除く): 25148949800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 19927, 25237, 39854, 50474, 79708, 99635, 100948, 126185, 159416, 199270, 201896, 252370, 398540, 504740, 797080, 1009480, 502897699, 1005795398, 2011590796, 2514488495, 4023181592, 5028976990, 10057953980, 20115907960]

約数ペア:

[(1, 20115907960), (2, 10057953980), (4, 5028976990), (5, 4023181592), (8, 2514488495), (10, 2011590796), (20, 1005795398), (40, 502897699), (19927, 1009480), (25237, 797080), (39854, 504740), (50474, 398540), (79708, 252370), (99635, 201896), (100948, 199270), (126185, 159416)]