128216775

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{55147}}^1$

素因数の和:55191

約数の個数: 24

約数和(自身を含む): 218827264

約数和(自身を除く): 90610489

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 55147, 165441, 275735, 827205, 1378675, 1709557, 4136025, 5128671, 8547785, 25643355, 42738925, 128216775]

約数ペア:

[(1, 128216775), (3, 42738925), (5, 25643355), (15, 8547785), (25, 5128671), (31, 4136025), (75, 1709557), (93, 1378675), (155, 827205), (465, 275735), (775, 165441), (2325, 55147)]