290966039

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{839}}^1$

素因数の和:999

約数の個数: 32

約数和(自身を含む): 371804160

約数和(自身を除く): 80838121

約数列:

[1, 7, 13, 37, 91, 103, 259, 481, 721, 839, 1339, 3367, 3811, 5873, 9373, 10907, 26677, 31043, 49543, 76349, 86417, 217301, 346801, 403559, 604919, 1123421, 2824913, 3197429, 7863947, 22382003, 41566577, 290966039]

約数ペア:

[(1, 290966039), (7, 41566577), (13, 22382003), (37, 7863947), (91, 3197429), (103, 2824913), (259, 1123421), (481, 604919), (721, 403559), (839, 346801), (1339, 217301), (3367, 86417), (3811, 76349), (5873, 49543), (9373, 31043), (10907, 26677)]