289208045

素因数分解:

$5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{9011}}^1$

素因数の和:9161

約数の個数: 24

約数和(自身を含む): 406837728

約数和(自身を除く): 117629683

約数列:

[1, 5, 7, 35, 49, 131, 245, 655, 917, 4585, 6419, 9011, 32095, 45055, 63077, 315385, 441539, 1180441, 2207695, 5902205, 8263087, 41315435, 57841609, 289208045]

約数ペア:

[(1, 289208045), (5, 57841609), (7, 41315435), (35, 8263087), (49, 5902205), (131, 2207695), (245, 1180441), (655, 441539), (917, 315385), (4585, 63077), (6419, 45055), (9011, 32095)]