19874360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2657}}^1$

素因数の和:2696

約数の個数: 64

約数和(自身を含む): 51671520

約数和(自身を除く): 31797160

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, 2657, 3740, 5314, 7480, 10628, 13285, 21256, 26570, 29227, 45169, 53140, 58454, 90338, 106280, 116908, 146135, 180676, 225845, 233816, 292270, 361352, 451690, 496859, 584540, 903380, 993718, 1169080, 1806760, 1987436, 2484295, 3974872, 4968590, 9937180, 19874360]

約数ペア:

[(1, 19874360), (2, 9937180), (4, 4968590), (5, 3974872), (8, 2484295), (10, 1987436), (11, 1806760), (17, 1169080), (20, 993718), (22, 903380), (34, 584540), (40, 496859), (44, 451690), (55, 361352), (68, 292270), (85, 233816), (88, 225845), (110, 180676), (136, 146135), (170, 116908), (187, 106280), (220, 90338), (340, 58454), (374, 53140), (440, 45169), (680, 29227), (748, 26570), (935, 21256), (1496, 13285), (1870, 10628), (2657, 7480), (3740, 5314)]