28719756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{563}}^1$

素因数の和:695

約数の個数: 72

約数和(自身を含む): 79038960

約数和(自身を除く): 50319204

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 109, 117, 156, 218, 234, 327, 436, 468, 563, 654, 981, 1126, 1308, 1417, 1689, 1962, 2252, 2834, 3378, 3924, 4251, 5067, 5668, 6756, 7319, 8502, 10134, 12753, 14638, 17004, 20268, 21957, 25506, 29276, 43914, 51012, 61367, 65871, 87828, 122734, 131742, 184101, 245468, 263484, 368202, 552303, 736404, 797771, 1104606, 1595542, 2209212, 2393313, 3191084, 4786626, 7179939, 9573252, 14359878, 28719756]

約数ペア:

[(1, 28719756), (2, 14359878), (3, 9573252), (4, 7179939), (6, 4786626), (9, 3191084), (12, 2393313), (13, 2209212), (18, 1595542), (26, 1104606), (36, 797771), (39, 736404), (52, 552303), (78, 368202), (109, 263484), (117, 245468), (156, 184101), (218, 131742), (234, 122734), (327, 87828), (436, 65871), (468, 61367), (563, 51012), (654, 43914), (981, 29276), (1126, 25506), (1308, 21957), (1417, 20268), (1689, 17004), (1962, 14638), (2252, 12753), (2834, 10134), (3378, 8502), (3924, 7319), (4251, 6756), (5067, 5668)]