28919975

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9721}}^1$

素因数の和:9755

約数の個数: 24

約数和(自身を含む): 43399008

約数和(自身を除く): 14479033

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 9721, 48605, 68047, 165257, 243025, 340235, 826285, 1156799, 1701175, 4131425, 5783995, 28919975]

約数ペア:

[(1, 28919975), (5, 5783995), (7, 4131425), (17, 1701175), (25, 1156799), (35, 826285), (85, 340235), (119, 243025), (175, 165257), (425, 68047), (595, 48605), (2975, 9721)]