51870255

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{587}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 85688064

約数和(自身を除く): 33817809

約数列:

[1, 3, 5, 15, 43, 129, 137, 215, 411, 587, 645, 685, 1761, 2055, 2935, 5891, 8805, 17673, 25241, 29455, 75723, 80419, 88365, 126205, 241257, 378615, 402095, 1206285, 3458017, 10374051, 17290085, 51870255]

約数ペア:

[(1, 51870255), (3, 17290085), (5, 10374051), (15, 3458017), (43, 1206285), (129, 402095), (137, 378615), (215, 241257), (411, 126205), (587, 88365), (645, 80419), (685, 75723), (1761, 29455), (2055, 25241), (2935, 17673), (5891, 8805)]