78854720

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:185

約数の個数: 168

約数和(自身を含む): 225161856

約数和(自身を除く): 146307136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 49, 56, 64, 70, 80, 94, 98, 107, 112, 140, 160, 188, 196, 214, 224, 235, 245, 280, 320, 329, 376, 392, 428, 448, 470, 490, 535, 560, 658, 749, 752, 784, 856, 940, 980, 1070, 1120, 1316, 1498, 1504, 1568, 1645, 1712, 1880, 1960, 2140, 2240, 2303, 2632, 2996, 3008, 3136, 3290, 3424, 3745, 3760, 3920, 4280, 4606, 5029, 5243, 5264, 5992, 6580, 6848, 7490, 7520, 7840, 8560, 9212, 10058, 10486, 10528, 11515, 11984, 13160, 14980, 15040, 15680, 17120, 18424, 20116, 20972, 21056, 23030, 23968, 25145, 26215, 26320, 29960, 34240, 35203, 36848, 40232, 41944, 46060, 47936, 50290, 52430, 52640, 59920, 70406, 73696, 80464, 83888, 92120, 100580, 104860, 105280, 119840, 140812, 147392, 160928, 167776, 176015, 184240, 201160, 209720, 239680, 246421, 281624, 321856, 335552, 352030, 368480, 402320, 419440, 492842, 563248, 704060, 736960, 804640, 838880, 985684, 1126496, 1232105, 1408120, 1609280, 1677760, 1971368, 2252992, 2464210, 2816240, 3942736, 4928420, 5632480, 7885472, 9856840, 11264960, 15770944, 19713680, 39427360, 78854720]

約数ペア:

[(1, 78854720), (2, 39427360), (4, 19713680), (5, 15770944), (7, 11264960), (8, 9856840), (10, 7885472), (14, 5632480), (16, 4928420), (20, 3942736), (28, 2816240), (32, 2464210), (35, 2252992), (40, 1971368), (47, 1677760), (49, 1609280), (56, 1408120), (64, 1232105), (70, 1126496), (80, 985684), (94, 838880), (98, 804640), (107, 736960), (112, 704060), (140, 563248), (160, 492842), (188, 419440), (196, 402320), (214, 368480), (224, 352030), (235, 335552), (245, 321856), (280, 281624), (320, 246421), (329, 239680), (376, 209720), (392, 201160), (428, 184240), (448, 176015), (470, 167776), (490, 160928), (535, 147392), (560, 140812), (658, 119840), (749, 105280), (752, 104860), (784, 100580), (856, 92120), (940, 83888), (980, 80464), (1070, 73696), (1120, 70406), (1316, 59920), (1498, 52640), (1504, 52430), (1568, 50290), (1645, 47936), (1712, 46060), (1880, 41944), (1960, 40232), (2140, 36848), (2240, 35203), (2303, 34240), (2632, 29960), (2996, 26320), (3008, 26215), (3136, 25145), (3290, 23968), (3424, 23030), (3745, 21056), (3760, 20972), (3920, 20116), (4280, 18424), (4606, 17120), (5029, 15680), (5243, 15040), (5264, 14980), (5992, 13160), (6580, 11984), (6848, 11515), (7490, 10528), (7520, 10486), (7840, 10058), (8560, 9212)]