19290920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2579}}^1$

素因数の和:2618

約数の個数: 64

約数和(自身を含む): 50155200

約数和(自身を除く): 30864280

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, 2579, 3740, 5158, 7480, 10316, 12895, 20632, 25790, 28369, 43843, 51580, 56738, 87686, 103160, 113476, 141845, 175372, 219215, 226952, 283690, 350744, 438430, 482273, 567380, 876860, 964546, 1134760, 1753720, 1929092, 2411365, 3858184, 4822730, 9645460, 19290920]

約数ペア:

[(1, 19290920), (2, 9645460), (4, 4822730), (5, 3858184), (8, 2411365), (10, 1929092), (11, 1753720), (17, 1134760), (20, 964546), (22, 876860), (34, 567380), (40, 482273), (44, 438430), (55, 350744), (68, 283690), (85, 226952), (88, 219215), (110, 175372), (136, 141845), (170, 113476), (187, 103160), (220, 87686), (340, 56738), (374, 51580), (440, 43843), (680, 28369), (748, 25790), (935, 20632), (1496, 12895), (1870, 10316), (2579, 7480), (3740, 5158)]