81578568

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{577}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 210576960

約数和(自身を除く): 128998392

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 137, 172, 258, 274, 344, 411, 516, 548, 577, 822, 1032, 1096, 1154, 1644, 1731, 2308, 3288, 3462, 4616, 5891, 6924, 11782, 13848, 17673, 23564, 24811, 35346, 47128, 49622, 70692, 74433, 79049, 99244, 141384, 148866, 158098, 198488, 237147, 297732, 316196, 474294, 595464, 632392, 948588, 1897176, 3399107, 6798214, 10197321, 13596428, 20394642, 27192856, 40789284, 81578568]

約数ペア:

[(1, 81578568), (2, 40789284), (3, 27192856), (4, 20394642), (6, 13596428), (8, 10197321), (12, 6798214), (24, 3399107), (43, 1897176), (86, 948588), (129, 632392), (137, 595464), (172, 474294), (258, 316196), (274, 297732), (344, 237147), (411, 198488), (516, 158098), (548, 148866), (577, 141384), (822, 99244), (1032, 79049), (1096, 74433), (1154, 70692), (1644, 49622), (1731, 47128), (2308, 35346), (3288, 24811), (3462, 23564), (4616, 17673), (5891, 13848), (6924, 11782)]