28367240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{5861}}^1$

素因数の和:5894

約数の個数: 48

約数和(自身を含む): 70168140

約数和(自身を除く): 41800900

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 4840, 5861, 11722, 23444, 29305, 46888, 58610, 64471, 117220, 128942, 234440, 257884, 322355, 515768, 644710, 709181, 1289420, 1418362, 2578840, 2836724, 3545905, 5673448, 7091810, 14183620, 28367240]

約数ペア:

[(1, 28367240), (2, 14183620), (4, 7091810), (5, 5673448), (8, 3545905), (10, 2836724), (11, 2578840), (20, 1418362), (22, 1289420), (40, 709181), (44, 644710), (55, 515768), (88, 322355), (110, 257884), (121, 234440), (220, 128942), (242, 117220), (440, 64471), (484, 58610), (605, 46888), (968, 29305), (1210, 23444), (2420, 11722), (4840, 5861)]