8391020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 19692288

約数和(自身を除く): 11301268

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 887, 946, 1774, 1892, 2365, 3548, 4435, 4730, 8870, 9460, 9757, 17740, 19514, 38141, 39028, 48785, 76282, 97570, 152564, 190705, 195140, 381410, 419551, 762820, 839102, 1678204, 2097755, 4195510, 8391020]

約数ペア:

[(1, 8391020), (2, 4195510), (4, 2097755), (5, 1678204), (10, 839102), (11, 762820), (20, 419551), (22, 381410), (43, 195140), (44, 190705), (55, 152564), (86, 97570), (110, 76282), (172, 48785), (215, 39028), (220, 38141), (430, 19514), (473, 17740), (860, 9757), (887, 9460), (946, 8870), (1774, 4730), (1892, 4435), (2365, 3548)]