1988011520

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{311}}^1$

素因数の和:572

約数の個数: 160

約数和(自身を含む): 5239593216

約数和(自身を除く): 3251581696

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 227, 256, 311, 320, 352, 440, 454, 512, 622, 640, 704, 880, 908, 1135, 1244, 1280, 1408, 1555, 1760, 1816, 2270, 2488, 2497, 2560, 2816, 3110, 3421, 3520, 3632, 4540, 4976, 4994, 5632, 6220, 6842, 7040, 7264, 9080, 9952, 9988, 12440, 12485, 13684, 14080, 14528, 17105, 18160, 19904, 19976, 24880, 24970, 27368, 28160, 29056, 34210, 36320, 39808, 39952, 49760, 49940, 54736, 58112, 68420, 70597, 72640, 79616, 79904, 99520, 99880, 109472, 116224, 136840, 141194, 145280, 159232, 159808, 199040, 199760, 218944, 273680, 282388, 290560, 319616, 352985, 398080, 399520, 437888, 547360, 564776, 581120, 639232, 705970, 776567, 796160, 799040, 875776, 1094720, 1129552, 1278464, 1411940, 1553134, 1598080, 1751552, 2189440, 2259104, 2823880, 3106268, 3196160, 3882835, 4378880, 4518208, 5647760, 6212536, 6392320, 7765670, 8757760, 9036416, 11295520, 12425072, 15531340, 18072832, 22591040, 24850144, 31062680, 36145664, 45182080, 49700288, 62125360, 90364160, 99400576, 124250720, 180728320, 198801152, 248501440, 397602304, 497002880, 994005760, 1988011520]

約数ペア:

[(1, 1988011520), (2, 994005760), (4, 497002880), (5, 397602304), (8, 248501440), (10, 198801152), (11, 180728320), (16, 124250720), (20, 99400576), (22, 90364160), (32, 62125360), (40, 49700288), (44, 45182080), (55, 36145664), (64, 31062680), (80, 24850144), (88, 22591040), (110, 18072832), (128, 15531340), (160, 12425072), (176, 11295520), (220, 9036416), (227, 8757760), (256, 7765670), (311, 6392320), (320, 6212536), (352, 5647760), (440, 4518208), (454, 4378880), (512, 3882835), (622, 3196160), (640, 3106268), (704, 2823880), (880, 2259104), (908, 2189440), (1135, 1751552), (1244, 1598080), (1280, 1553134), (1408, 1411940), (1555, 1278464), (1760, 1129552), (1816, 1094720), (2270, 875776), (2488, 799040), (2497, 796160), (2560, 776567), (2816, 705970), (3110, 639232), (3421, 581120), (3520, 564776), (3632, 547360), (4540, 437888), (4976, 399520), (4994, 398080), (5632, 352985), (6220, 319616), (6842, 290560), (7040, 282388), (7264, 273680), (9080, 218944), (9952, 199760), (9988, 199040), (12440, 159808), (12485, 159232), (13684, 145280), (14080, 141194), (14528, 136840), (17105, 116224), (18160, 109472), (19904, 99880), (19976, 99520), (24880, 79904), (24970, 79616), (27368, 72640), (28160, 70597), (29056, 68420), (34210, 58112), (36320, 54736), (39808, 49940), (39952, 49760)]