81423950

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{39719}}^1$

素因数の和:39772

約数の個数: 24

約数和(自身を含む): 155146320

約数和(自身を除く): 73722370

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 205, 410, 1025, 2050, 39719, 79438, 198595, 397190, 992975, 1628479, 1985950, 3256958, 8142395, 16284790, 40711975, 81423950]

約数ペア:

[(1, 81423950), (2, 40711975), (5, 16284790), (10, 8142395), (25, 3256958), (41, 1985950), (50, 1628479), (82, 992975), (205, 397190), (410, 198595), (1025, 79438), (2050, 39719)]