11181920

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4111}}^1$

素因数の和:4143

約数の個数: 48

約数和(自身を含む): 27978048

約数和(自身を除く): 16796128

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 4111, 8222, 16444, 20555, 32888, 41110, 65776, 69887, 82220, 131552, 139774, 164440, 279548, 328880, 349435, 559096, 657760, 698870, 1118192, 1397740, 2236384, 2795480, 5590960, 11181920]

約数ペア:

[(1, 11181920), (2, 5590960), (4, 2795480), (5, 2236384), (8, 1397740), (10, 1118192), (16, 698870), (17, 657760), (20, 559096), (32, 349435), (34, 328880), (40, 279548), (68, 164440), (80, 139774), (85, 131552), (136, 82220), (160, 69887), (170, 65776), (272, 41110), (340, 32888), (544, 20555), (680, 16444), (1360, 8222), (2720, 4111)]