28827495

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:166

約数の個数: 80

約数和(自身を含む): 56453760

約数和(自身を除く): 27626265

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 53, 79, 81, 85, 135, 153, 159, 237, 255, 265, 395, 405, 459, 477, 711, 765, 795, 901, 1185, 1343, 1377, 1431, 2133, 2295, 2385, 2703, 3555, 4029, 4187, 4293, 4505, 6399, 6715, 6885, 7155, 8109, 10665, 12087, 12561, 13515, 20145, 20935, 21465, 24327, 31995, 36261, 37683, 40545, 60435, 62805, 71179, 72981, 108783, 113049, 121635, 181305, 188415, 213537, 339147, 355895, 364905, 543915, 565245, 640611, 1067685, 1695735, 1921833, 3203055, 5765499, 9609165, 28827495]

約数ペア:

[(1, 28827495), (3, 9609165), (5, 5765499), (9, 3203055), (15, 1921833), (17, 1695735), (27, 1067685), (45, 640611), (51, 565245), (53, 543915), (79, 364905), (81, 355895), (85, 339147), (135, 213537), (153, 188415), (159, 181305), (237, 121635), (255, 113049), (265, 108783), (395, 72981), (405, 71179), (459, 62805), (477, 60435), (711, 40545), (765, 37683), (795, 36261), (901, 31995), (1185, 24327), (1343, 21465), (1377, 20935), (1431, 20145), (2133, 13515), (2295, 12561), (2385, 12087), (2703, 10665), (3555, 8109), (4029, 7155), (4187, 6885), (4293, 6715), (4505, 6399)]