128665225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2657}}^1$

素因数の和:2829

約数の個数: 24

約数和(自身を含む): 173035800

約数和(自身を除く): 44370575

約数列:

[1, 5, 13, 25, 65, 149, 325, 745, 1937, 2657, 3725, 9685, 13285, 34541, 48425, 66425, 172705, 395893, 863525, 1979465, 5146609, 9897325, 25733045, 128665225]

約数ペア:

[(1, 128665225), (5, 25733045), (13, 9897325), (25, 5146609), (65, 1979465), (149, 863525), (325, 395893), (745, 172705), (1937, 66425), (2657, 48425), (3725, 34541), (9685, 13285)]