19047820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 46654272

約数和(自身を除く): 27606452

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 121, 170, 187, 220, 242, 340, 374, 463, 484, 605, 748, 926, 935, 1210, 1852, 1870, 2057, 2315, 2420, 3740, 4114, 4630, 5093, 7871, 8228, 9260, 10186, 10285, 15742, 20372, 20570, 25465, 31484, 39355, 41140, 50930, 56023, 78710, 86581, 101860, 112046, 157420, 173162, 224092, 280115, 346324, 432905, 560230, 865810, 952391, 1120460, 1731620, 1904782, 3809564, 4761955, 9523910, 19047820]

約数ペア:

[(1, 19047820), (2, 9523910), (4, 4761955), (5, 3809564), (10, 1904782), (11, 1731620), (17, 1120460), (20, 952391), (22, 865810), (34, 560230), (44, 432905), (55, 346324), (68, 280115), (85, 224092), (110, 173162), (121, 157420), (170, 112046), (187, 101860), (220, 86581), (242, 78710), (340, 56023), (374, 50930), (463, 41140), (484, 39355), (605, 31484), (748, 25465), (926, 20570), (935, 20372), (1210, 15742), (1852, 10285), (1870, 10186), (2057, 9260), (2315, 8228), (2420, 7871), (3740, 5093), (4114, 4630)]