82698940

素因数分解:

$2^2\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{2081}}^1$

素因数の和:4077

約数の個数: 24

約数和(自身を含む): 173838672

約数和(自身を除く): 91139732

約数列:

[1, 2, 4, 5, 10, 20, 1987, 2081, 3974, 4162, 7948, 8324, 9935, 10405, 19870, 20810, 39740, 41620, 4134947, 8269894, 16539788, 20674735, 41349470, 82698940]

約数ペア:

[(1, 82698940), (2, 41349470), (4, 20674735), (5, 16539788), (10, 8269894), (20, 4134947), (1987, 41620), (2081, 39740), (3974, 20810), (4162, 19870), (7948, 10405), (8324, 9935)]