84772120

素因数分解:

$2^3\times 5^1\times {\mathrm{1279}}^1\times {\mathrm{1657}}^1$

素因数の和:2947

約数の個数: 32

約数和(自身を含む): 191001600

約数和(自身を除く): 106229480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1279, 1657, 2558, 3314, 5116, 6395, 6628, 8285, 10232, 12790, 13256, 16570, 25580, 33140, 51160, 66280, 2119303, 4238606, 8477212, 10596515, 16954424, 21193030, 42386060, 84772120]

約数ペア:

[(1, 84772120), (2, 42386060), (4, 21193030), (5, 16954424), (8, 10596515), (10, 8477212), (20, 4238606), (40, 2119303), (1279, 66280), (1657, 51160), (2558, 33140), (3314, 25580), (5116, 16570), (6395, 13256), (6628, 12790), (8285, 10232)]