19103920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1277}}^1$

素因数の和:1318

約数の個数: 80

約数和(自身を含む): 51344928

約数和(自身を除く): 32241008

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1277, 1360, 1496, 1870, 2554, 2992, 3740, 5108, 6385, 7480, 10216, 12770, 14047, 14960, 20432, 21709, 25540, 28094, 43418, 51080, 56188, 70235, 86836, 102160, 108545, 112376, 140470, 173672, 217090, 224752, 238799, 280940, 347344, 434180, 477598, 561880, 868360, 955196, 1123760, 1193995, 1736720, 1910392, 2387990, 3820784, 4775980, 9551960, 19103920]

約数ペア:

[(1, 19103920), (2, 9551960), (4, 4775980), (5, 3820784), (8, 2387990), (10, 1910392), (11, 1736720), (16, 1193995), (17, 1123760), (20, 955196), (22, 868360), (34, 561880), (40, 477598), (44, 434180), (55, 347344), (68, 280940), (80, 238799), (85, 224752), (88, 217090), (110, 173672), (136, 140470), (170, 112376), (176, 108545), (187, 102160), (220, 86836), (272, 70235), (340, 56188), (374, 51080), (440, 43418), (680, 28094), (748, 25540), (880, 21709), (935, 20432), (1277, 14960), (1360, 14047), (1496, 12770), (1870, 10216), (2554, 7480), (2992, 6385), (3740, 5108)]