1228220825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{87887}}^1$

素因数の和:87953

約数の個数: 24

約数和(自身を含む): 1678309248

約数和(自身を除く): 450088423

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2795, 13975, 87887, 439435, 1142531, 2197175, 3779141, 5712655, 18895705, 28563275, 49128833, 94478525, 245644165, 1228220825]

約数ペア:

[(1, 1228220825), (5, 245644165), (13, 94478525), (25, 49128833), (43, 28563275), (65, 18895705), (215, 5712655), (325, 3779141), (559, 2197175), (1075, 1142531), (2795, 439435), (13975, 87887)]