81730840

素因数分解:

$2^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{2113}}^1$

素因数の和:3091

約数の個数: 32

約数和(自身を含む): 184171680

約数和(自身を除く): 102440840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 967, 1934, 2113, 3868, 4226, 4835, 7736, 8452, 9670, 10565, 16904, 19340, 21130, 38680, 42260, 84520, 2043271, 4086542, 8173084, 10216355, 16346168, 20432710, 40865420, 81730840]

約数ペア:

[(1, 81730840), (2, 40865420), (4, 20432710), (5, 16346168), (8, 10216355), (10, 8173084), (20, 4086542), (40, 2043271), (967, 84520), (1934, 42260), (2113, 38680), (3868, 21130), (4226, 19340), (4835, 16904), (7736, 10565), (8452, 9670)]