81022825

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:314

約数の個数: 36

約数和(自身を含む): 110373888

約数和(自身を除く): 29351063

約数列:

[1, 5, 13, 25, 65, 127, 151, 169, 325, 635, 755, 845, 1651, 1963, 3175, 3775, 4225, 8255, 9815, 19177, 21463, 25519, 41275, 49075, 95885, 107315, 127595, 249301, 479425, 536575, 637975, 1246505, 3240913, 6232525, 16204565, 81022825]

約数ペア:

[(1, 81022825), (5, 16204565), (13, 6232525), (25, 3240913), (65, 1246505), (127, 637975), (151, 536575), (169, 479425), (325, 249301), (635, 127595), (755, 107315), (845, 95885), (1651, 49075), (1963, 41275), (3175, 25519), (3775, 21463), (4225, 19177), (8255, 9815)]