165710840

素因数分解:

$2^3\times 5^1\times {\mathrm{1693}}^1\times {\mathrm{2447}}^1$

素因数の和:4151

約数の個数: 32

約数和(自身を含む): 373222080

約数和(自身を除く): 207511240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1693, 2447, 3386, 4894, 6772, 8465, 9788, 12235, 13544, 16930, 19576, 24470, 33860, 48940, 67720, 97880, 4142771, 8285542, 16571084, 20713855, 33142168, 41427710, 82855420, 165710840]

約数ペア:

[(1, 165710840), (2, 82855420), (4, 41427710), (5, 33142168), (8, 20713855), (10, 16571084), (20, 8285542), (40, 4142771), (1693, 97880), (2447, 67720), (3386, 48940), (4894, 33860), (6772, 24470), (8465, 19576), (9788, 16930), (12235, 13544)]