18709360

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2411}}^1$

素因数の和:2521

約数の個数: 40

約数和(自身を含む): 43965936

約数和(自身を除く): 25256576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 2411, 3880, 4822, 7760, 9644, 12055, 19288, 24110, 38576, 48220, 96440, 192880, 233867, 467734, 935468, 1169335, 1870936, 2338670, 3741872, 4677340, 9354680, 18709360]

約数ペア:

[(1, 18709360), (2, 9354680), (4, 4677340), (5, 3741872), (8, 2338670), (10, 1870936), (16, 1169335), (20, 935468), (40, 467734), (80, 233867), (97, 192880), (194, 96440), (388, 48220), (485, 38576), (776, 24110), (970, 19288), (1552, 12055), (1940, 9644), (2411, 7760), (3880, 4822)]