81904080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:253

約数の個数: 160

約数和(自身を含む): 266125824

約数和(自身を除く): 184221744

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 47, 48, 53, 60, 80, 94, 106, 120, 137, 141, 159, 188, 212, 235, 240, 265, 274, 282, 318, 376, 411, 424, 470, 530, 548, 564, 636, 685, 705, 752, 795, 822, 848, 940, 1060, 1096, 1128, 1272, 1370, 1410, 1590, 1644, 1880, 2055, 2120, 2192, 2256, 2491, 2544, 2740, 2820, 3180, 3288, 3760, 4110, 4240, 4982, 5480, 5640, 6360, 6439, 6576, 7261, 7473, 8220, 9964, 10960, 11280, 12455, 12720, 12878, 14522, 14946, 16440, 19317, 19928, 21783, 24910, 25756, 29044, 29892, 32195, 32880, 36305, 37365, 38634, 39856, 43566, 49820, 51512, 58088, 59784, 64390, 72610, 74730, 77268, 87132, 96585, 99640, 103024, 108915, 116176, 119568, 128780, 145220, 149460, 154536, 174264, 193170, 199280, 217830, 257560, 290440, 298920, 309072, 341267, 348528, 386340, 435660, 515120, 580880, 597840, 682534, 772680, 871320, 1023801, 1365068, 1545360, 1706335, 1742640, 2047602, 2730136, 3412670, 4095204, 5119005, 5460272, 6825340, 8190408, 10238010, 13650680, 16380816, 20476020, 27301360, 40952040, 81904080]

約数ペア:

[(1, 81904080), (2, 40952040), (3, 27301360), (4, 20476020), (5, 16380816), (6, 13650680), (8, 10238010), (10, 8190408), (12, 6825340), (15, 5460272), (16, 5119005), (20, 4095204), (24, 3412670), (30, 2730136), (40, 2047602), (47, 1742640), (48, 1706335), (53, 1545360), (60, 1365068), (80, 1023801), (94, 871320), (106, 772680), (120, 682534), (137, 597840), (141, 580880), (159, 515120), (188, 435660), (212, 386340), (235, 348528), (240, 341267), (265, 309072), (274, 298920), (282, 290440), (318, 257560), (376, 217830), (411, 199280), (424, 193170), (470, 174264), (530, 154536), (548, 149460), (564, 145220), (636, 128780), (685, 119568), (705, 116176), (752, 108915), (795, 103024), (822, 99640), (848, 96585), (940, 87132), (1060, 77268), (1096, 74730), (1128, 72610), (1272, 64390), (1370, 59784), (1410, 58088), (1590, 51512), (1644, 49820), (1880, 43566), (2055, 39856), (2120, 38634), (2192, 37365), (2256, 36305), (2491, 32880), (2544, 32195), (2740, 29892), (2820, 29044), (3180, 25756), (3288, 24910), (3760, 21783), (4110, 19928), (4240, 19317), (4982, 16440), (5480, 14946), (5640, 14522), (6360, 12878), (6439, 12720), (6576, 12455), (7261, 11280), (7473, 10960), (8220, 9964)]