81663260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{1523}}^1$

素因数の和:1922

約数の個数: 48

約数和(自身を含む): 196632576

約数和(自身を除く): 114969316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 383, 766, 1523, 1532, 1915, 2681, 3046, 3830, 5362, 6092, 7615, 7660, 10661, 10724, 13405, 15230, 21322, 26810, 30460, 42644, 53305, 53620, 106610, 213220, 583309, 1166618, 2333236, 2916545, 4083163, 5833090, 8166326, 11666180, 16332652, 20415815, 40831630, 81663260]

約数ペア:

[(1, 81663260), (2, 40831630), (4, 20415815), (5, 16332652), (7, 11666180), (10, 8166326), (14, 5833090), (20, 4083163), (28, 2916545), (35, 2333236), (70, 1166618), (140, 583309), (383, 213220), (766, 106610), (1523, 53620), (1532, 53305), (1915, 42644), (2681, 30460), (3046, 26810), (3830, 21322), (5362, 15230), (6092, 13405), (7615, 10724), (7660, 10661)]