81569080

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:484

約数の個数: 64

約数和(自身を含む): 188697600

約数和(自身を除く): 107128520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 83, 158, 166, 311, 316, 332, 395, 415, 622, 632, 664, 790, 830, 1244, 1555, 1580, 1660, 2488, 3110, 3160, 3320, 6220, 6557, 12440, 13114, 24569, 25813, 26228, 32785, 49138, 51626, 52456, 65570, 98276, 103252, 122845, 129065, 131140, 196552, 206504, 245690, 258130, 262280, 491380, 516260, 982760, 1032520, 2039227, 4078454, 8156908, 10196135, 16313816, 20392270, 40784540, 81569080]

約数ペア:

[(1, 81569080), (2, 40784540), (4, 20392270), (5, 16313816), (8, 10196135), (10, 8156908), (20, 4078454), (40, 2039227), (79, 1032520), (83, 982760), (158, 516260), (166, 491380), (311, 262280), (316, 258130), (332, 245690), (395, 206504), (415, 196552), (622, 131140), (632, 129065), (664, 122845), (790, 103252), (830, 98276), (1244, 65570), (1555, 52456), (1580, 51626), (1660, 49138), (2488, 32785), (3110, 26228), (3160, 25813), (3320, 24569), (6220, 13114), (6557, 12440)]