68721520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{373}}^1$

素因数の和:447

約数の個数: 120

約数和(自身を含む): 190327104

約数和(自身を除く): 121605584

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 49, 56, 70, 80, 94, 98, 112, 140, 188, 196, 235, 245, 280, 329, 373, 376, 392, 470, 490, 560, 658, 746, 752, 784, 940, 980, 1316, 1492, 1645, 1865, 1880, 1960, 2303, 2611, 2632, 2984, 3290, 3730, 3760, 3920, 4606, 5222, 5264, 5968, 6580, 7460, 9212, 10444, 11515, 13055, 13160, 14920, 17531, 18277, 18424, 20888, 23030, 26110, 26320, 29840, 35062, 36554, 36848, 41776, 46060, 52220, 70124, 73108, 87655, 91385, 92120, 104440, 122717, 140248, 146216, 175310, 182770, 184240, 208880, 245434, 280496, 292432, 350620, 365540, 490868, 613585, 701240, 731080, 859019, 981736, 1227170, 1402480, 1462160, 1718038, 1963472, 2454340, 3436076, 4295095, 4908680, 6872152, 8590190, 9817360, 13744304, 17180380, 34360760, 68721520]

約数ペア:

[(1, 68721520), (2, 34360760), (4, 17180380), (5, 13744304), (7, 9817360), (8, 8590190), (10, 6872152), (14, 4908680), (16, 4295095), (20, 3436076), (28, 2454340), (35, 1963472), (40, 1718038), (47, 1462160), (49, 1402480), (56, 1227170), (70, 981736), (80, 859019), (94, 731080), (98, 701240), (112, 613585), (140, 490868), (188, 365540), (196, 350620), (235, 292432), (245, 280496), (280, 245434), (329, 208880), (373, 184240), (376, 182770), (392, 175310), (470, 146216), (490, 140248), (560, 122717), (658, 104440), (746, 92120), (752, 91385), (784, 87655), (940, 73108), (980, 70124), (1316, 52220), (1492, 46060), (1645, 41776), (1865, 36848), (1880, 36554), (1960, 35062), (2303, 29840), (2611, 26320), (2632, 26110), (2984, 23030), (3290, 20888), (3730, 18424), (3760, 18277), (3920, 17531), (4606, 14920), (5222, 13160), (5264, 13055), (5968, 11515), (6580, 10444), (7460, 9212)]