87878020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{55619}}^1$

素因数の和:55707

約数の個数: 24

約数和(自身を含む): 186883200

約数和(自身を除く): 99005180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 55619, 111238, 222476, 278095, 556190, 1112380, 4393901, 8787802, 17575604, 21969505, 43939010, 87878020]

約数ペア:

[(1, 87878020), (2, 43939010), (4, 21969505), (5, 17575604), (10, 8787802), (20, 4393901), (79, 1112380), (158, 556190), (316, 278095), (395, 222476), (790, 111238), (1580, 55619)]