2113880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1229}}^1$

素因数の和:1283

約数の個数: 32

約数和(自身を含む): 4870800

約数和(自身を除く): 2756920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1229, 1720, 2458, 4916, 6145, 9832, 12290, 24580, 49160, 52847, 105694, 211388, 264235, 422776, 528470, 1056940, 2113880]

約数ペア:

[(1, 2113880), (2, 1056940), (4, 528470), (5, 422776), (8, 264235), (10, 211388), (20, 105694), (40, 52847), (43, 49160), (86, 24580), (172, 12290), (215, 9832), (344, 6145), (430, 4916), (860, 2458), (1229, 1720)]