77828725

素因数分解:

$5^2\times {\mathrm{13}}^4\times {\mathrm{109}}^1$

素因数の和:171

約数の個数: 30

約数和(自身を含む): 105508810

約数和(自身を除く): 27680085

約数列:

[1, 5, 13, 25, 65, 109, 169, 325, 545, 845, 1417, 2197, 2725, 4225, 7085, 10985, 18421, 28561, 35425, 54925, 92105, 142805, 239473, 460525, 714025, 1197365, 3113149, 5986825, 15565745, 77828725]

約数ペア:

[(1, 77828725), (5, 15565745), (13, 5986825), (25, 3113149), (65, 1197365), (109, 714025), (169, 460525), (325, 239473), (545, 142805), (845, 92105), (1417, 54925), (2197, 35425), (2725, 28561), (4225, 18421), (7085, 10985)]