81825020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{215329}}^1$

素因数の和:215357

約数の個数: 24

約数和(自身を含む): 180877200

約数和(自身を除く): 99052180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 215329, 430658, 861316, 1076645, 2153290, 4091251, 4306580, 8182502, 16365004, 20456255, 40912510, 81825020]

約数ペア:

[(1, 81825020), (2, 40912510), (4, 20456255), (5, 16365004), (10, 8182502), (19, 4306580), (20, 4091251), (38, 2153290), (76, 1076645), (95, 861316), (190, 430658), (380, 215329)]