19892620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4759}}^1$

素因数の和:4798

約数の個数: 48

約数和(自身を含む): 47980800

約数和(自身を除く): 28088180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4759, 9518, 19036, 23795, 47590, 52349, 90421, 95180, 104698, 180842, 209396, 261745, 361684, 452105, 523490, 904210, 994631, 1046980, 1808420, 1989262, 3978524, 4973155, 9946310, 19892620]

約数ペア:

[(1, 19892620), (2, 9946310), (4, 4973155), (5, 3978524), (10, 1989262), (11, 1808420), (19, 1046980), (20, 994631), (22, 904210), (38, 523490), (44, 452105), (55, 361684), (76, 261745), (95, 209396), (110, 180842), (190, 104698), (209, 95180), (220, 90421), (380, 52349), (418, 47590), (836, 23795), (1045, 19036), (2090, 9518), (4180, 4759)]