205890275

素因数分解:

$5^2\times {\mathrm{139}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 259358400

約数和(自身を除く): 53468125

約数列:

[1, 5, 25, 139, 179, 331, 695, 895, 1655, 3475, 4475, 8275, 24881, 46009, 59249, 124405, 230045, 296245, 622025, 1150225, 1481225, 8235611, 41178055, 205890275]

約数ペア:

[(1, 205890275), (5, 41178055), (25, 8235611), (139, 1481225), (179, 1150225), (331, 622025), (695, 296245), (895, 230045), (1655, 124405), (3475, 59249), (4475, 46009), (8275, 24881)]