257330450

素因数分解:

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

素因数の和:2831

約数の個数: 48

約数和(自身を含む): 519107400

約数和(自身を除く): 261776950

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 149, 298, 325, 650, 745, 1490, 1937, 2657, 3725, 3874, 5314, 7450, 9685, 13285, 19370, 26570, 34541, 48425, 66425, 69082, 96850, 132850, 172705, 345410, 395893, 791786, 863525, 1727050, 1979465, 3958930, 5146609, 9897325, 10293218, 19794650, 25733045, 51466090, 128665225, 257330450]

約数ペア:

[(1, 257330450), (2, 128665225), (5, 51466090), (10, 25733045), (13, 19794650), (25, 10293218), (26, 9897325), (50, 5146609), (65, 3958930), (130, 1979465), (149, 1727050), (298, 863525), (325, 791786), (650, 395893), (745, 345410), (1490, 172705), (1937, 132850), (2657, 96850), (3725, 69082), (3874, 66425), (5314, 48425), (7450, 34541), (9685, 26570), (13285, 19370)]