28495025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2105

約数の個数: 24

約数和(自身を含む): 38955840

約数和(自身を除く): 10460815

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2039, 2795, 10195, 13975, 26507, 50975, 87677, 132535, 438385, 662675, 1139801, 2191925, 5699005, 28495025]

約数ペア:

[(1, 28495025), (5, 5699005), (13, 2191925), (25, 1139801), (43, 662675), (65, 438385), (215, 132535), (325, 87677), (559, 50975), (1075, 26507), (2039, 13975), (2795, 10195)]