19021640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2543}}^1$

素因数の和:2582

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 30433720

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 2543, 3740, 5086, 7480, 10172, 12715, 20344, 25430, 27973, 43231, 50860, 55946, 86462, 101720, 111892, 139865, 172924, 216155, 223784, 279730, 345848, 432310, 475541, 559460, 864620, 951082, 1118920, 1729240, 1902164, 2377705, 3804328, 4755410, 9510820, 19021640]

約数ペア:

[(1, 19021640), (2, 9510820), (4, 4755410), (5, 3804328), (8, 2377705), (10, 1902164), (11, 1729240), (17, 1118920), (20, 951082), (22, 864620), (34, 559460), (40, 475541), (44, 432310), (55, 345848), (68, 279730), (85, 223784), (88, 216155), (110, 172924), (136, 139865), (170, 111892), (187, 101720), (220, 86462), (340, 55946), (374, 50860), (440, 43231), (680, 27973), (748, 25430), (935, 20344), (1496, 12715), (1870, 10172), (2543, 7480), (3740, 5086)]