81951120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2647}}^1$

素因数の和:2709

約数の個数: 120

約数和(自身を含む): 281726016

約数和(自身を除く): 199774896

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 2647, 3096, 3440, 3870, 5160, 5294, 6192, 7740, 7941, 10320, 10588, 13235, 15480, 15882, 21176, 23823, 26470, 30960, 31764, 39705, 42352, 47646, 52940, 63528, 79410, 95292, 105880, 113821, 119115, 127056, 158820, 190584, 211760, 227642, 238230, 317640, 341463, 381168, 455284, 476460, 569105, 635280, 682926, 910568, 952920, 1024389, 1138210, 1365852, 1707315, 1821136, 1905840, 2048778, 2276420, 2731704, 3414630, 4097556, 4552840, 5121945, 5463408, 6829260, 8195112, 9105680, 10243890, 13658520, 16390224, 20487780, 27317040, 40975560, 81951120]

約数ペア:

[(1, 81951120), (2, 40975560), (3, 27317040), (4, 20487780), (5, 16390224), (6, 13658520), (8, 10243890), (9, 9105680), (10, 8195112), (12, 6829260), (15, 5463408), (16, 5121945), (18, 4552840), (20, 4097556), (24, 3414630), (30, 2731704), (36, 2276420), (40, 2048778), (43, 1905840), (45, 1821136), (48, 1707315), (60, 1365852), (72, 1138210), (80, 1024389), (86, 952920), (90, 910568), (120, 682926), (129, 635280), (144, 569105), (172, 476460), (180, 455284), (215, 381168), (240, 341463), (258, 317640), (344, 238230), (360, 227642), (387, 211760), (430, 190584), (516, 158820), (645, 127056), (688, 119115), (720, 113821), (774, 105880), (860, 95292), (1032, 79410), (1290, 63528), (1548, 52940), (1720, 47646), (1935, 42352), (2064, 39705), (2580, 31764), (2647, 30960), (3096, 26470), (3440, 23823), (3870, 21176), (5160, 15882), (5294, 15480), (6192, 13235), (7740, 10588), (7941, 10320)]