27913880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16229}}^1$

素因数の和:16283

約数の個数: 32

約数和(自身を含む): 64270800

約数和(自身を除く): 36356920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16229, 32458, 64916, 81145, 129832, 162290, 324580, 649160, 697847, 1395694, 2791388, 3489235, 5582776, 6978470, 13956940, 27913880]

約数ペア:

[(1, 27913880), (2, 13956940), (4, 6978470), (5, 5582776), (8, 3489235), (10, 2791388), (20, 1395694), (40, 697847), (43, 649160), (86, 324580), (172, 162290), (215, 129832), (344, 81145), (430, 64916), (860, 32458), (1720, 16229)]