40638080

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:266

約数の個数: 128

約数和(自身を含む): 113978880

約数和(自身を除く): 73340800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 64, 70, 80, 94, 112, 128, 140, 160, 188, 193, 224, 235, 280, 320, 329, 376, 386, 448, 470, 560, 640, 658, 752, 772, 896, 940, 965, 1120, 1316, 1351, 1504, 1544, 1645, 1880, 1930, 2240, 2632, 2702, 3008, 3088, 3290, 3760, 3860, 4480, 5264, 5404, 6016, 6176, 6580, 6755, 7520, 7720, 9071, 10528, 10808, 12352, 13160, 13510, 15040, 15440, 18142, 21056, 21616, 24704, 26320, 27020, 30080, 30880, 36284, 42112, 43232, 45355, 52640, 54040, 61760, 63497, 72568, 86464, 90710, 105280, 108080, 123520, 126994, 145136, 172928, 181420, 210560, 216160, 253988, 290272, 317485, 362840, 432320, 507976, 580544, 634970, 725680, 864640, 1015952, 1161088, 1269940, 1451360, 2031904, 2539880, 2902720, 4063808, 5079760, 5805440, 8127616, 10159520, 20319040, 40638080]

約数ペア:

[(1, 40638080), (2, 20319040), (4, 10159520), (5, 8127616), (7, 5805440), (8, 5079760), (10, 4063808), (14, 2902720), (16, 2539880), (20, 2031904), (28, 1451360), (32, 1269940), (35, 1161088), (40, 1015952), (47, 864640), (56, 725680), (64, 634970), (70, 580544), (80, 507976), (94, 432320), (112, 362840), (128, 317485), (140, 290272), (160, 253988), (188, 216160), (193, 210560), (224, 181420), (235, 172928), (280, 145136), (320, 126994), (329, 123520), (376, 108080), (386, 105280), (448, 90710), (470, 86464), (560, 72568), (640, 63497), (658, 61760), (752, 54040), (772, 52640), (896, 45355), (940, 43232), (965, 42112), (1120, 36284), (1316, 30880), (1351, 30080), (1504, 27020), (1544, 26320), (1645, 24704), (1880, 21616), (1930, 21056), (2240, 18142), (2632, 15440), (2702, 15040), (3008, 13510), (3088, 13160), (3290, 12352), (3760, 10808), (3860, 10528), (4480, 9071), (5264, 7720), (5404, 7520), (6016, 6755), (6176, 6580)]