81517680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2633}}^1$

素因数の和:2695

約数の個数: 120

約数和(自身を含む): 280236528

約数和(自身を除く): 198718848

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, 2633, 3096, 3440, 3870, 5160, 5266, 6192, 7740, 7899, 10320, 10532, 13165, 15480, 15798, 21064, 23697, 26330, 30960, 31596, 39495, 42128, 47394, 52660, 63192, 78990, 94788, 105320, 113219, 118485, 126384, 157980, 189576, 210640, 226438, 236970, 315960, 339657, 379152, 452876, 473940, 566095, 631920, 679314, 905752, 947880, 1018971, 1132190, 1358628, 1698285, 1811504, 1895760, 2037942, 2264380, 2717256, 3396570, 4075884, 4528760, 5094855, 5434512, 6793140, 8151768, 9057520, 10189710, 13586280, 16303536, 20379420, 27172560, 40758840, 81517680]

約数ペア:

[(1, 81517680), (2, 40758840), (3, 27172560), (4, 20379420), (5, 16303536), (6, 13586280), (8, 10189710), (9, 9057520), (10, 8151768), (12, 6793140), (15, 5434512), (16, 5094855), (18, 4528760), (20, 4075884), (24, 3396570), (30, 2717256), (36, 2264380), (40, 2037942), (43, 1895760), (45, 1811504), (48, 1698285), (60, 1358628), (72, 1132190), (80, 1018971), (86, 947880), (90, 905752), (120, 679314), (129, 631920), (144, 566095), (172, 473940), (180, 452876), (215, 379152), (240, 339657), (258, 315960), (344, 236970), (360, 226438), (387, 210640), (430, 189576), (516, 157980), (645, 126384), (688, 118485), (720, 113219), (774, 105320), (860, 94788), (1032, 78990), (1290, 63192), (1548, 52660), (1720, 47394), (1935, 42128), (2064, 39495), (2580, 31596), (2633, 30960), (3096, 26330), (3440, 23697), (3870, 21064), (5160, 15798), (5266, 15480), (6192, 13165), (7740, 10532), (7899, 10320)]