78615740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1609}}^1$

素因数の和:1974

約数の個数: 48

約数和(自身を含む): 189336000

約数和(自身を除く): 110720260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1609, 1745, 2443, 3218, 3490, 4886, 6436, 6980, 8045, 9772, 11263, 12215, 16090, 22526, 24430, 32180, 45052, 48860, 56315, 112630, 225260, 561541, 1123082, 2246164, 2807705, 3930787, 5615410, 7861574, 11230820, 15723148, 19653935, 39307870, 78615740]

約数ペア:

[(1, 78615740), (2, 39307870), (4, 19653935), (5, 15723148), (7, 11230820), (10, 7861574), (14, 5615410), (20, 3930787), (28, 2807705), (35, 2246164), (70, 1123082), (140, 561541), (349, 225260), (698, 112630), (1396, 56315), (1609, 48860), (1745, 45052), (2443, 32180), (3218, 24430), (3490, 22526), (4886, 16090), (6436, 12215), (6980, 11263), (8045, 9772)]