157420975

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{509}}^1$

素因数の和:747

約数の個数: 24

約数和(自身を含む): 199206000

約数和(自身を除く): 41785025

約数列:

[1, 5, 25, 89, 139, 445, 509, 695, 2225, 2545, 3475, 12371, 12725, 45301, 61855, 70751, 226505, 309275, 353755, 1132525, 1768775, 6296839, 31484195, 157420975]

約数ペア:

[(1, 157420975), (5, 31484195), (25, 6296839), (89, 1768775), (139, 1132525), (445, 353755), (509, 309275), (695, 226505), (2225, 70751), (2545, 61855), (3475, 45301), (12371, 12725)]