87312820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{1787}}^1$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 210268800

約数和(自身を除く): 122955980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1745, 1787, 2443, 3490, 3574, 4886, 6980, 7148, 8935, 9772, 12215, 12509, 17870, 24430, 25018, 35740, 48860, 50036, 62545, 125090, 250180, 623663, 1247326, 2494652, 3118315, 4365641, 6236630, 8731282, 12473260, 17462564, 21828205, 43656410, 87312820]

約数ペア:

[(1, 87312820), (2, 43656410), (4, 21828205), (5, 17462564), (7, 12473260), (10, 8731282), (14, 6236630), (20, 4365641), (28, 3118315), (35, 2494652), (70, 1247326), (140, 623663), (349, 250180), (698, 125090), (1396, 62545), (1745, 50036), (1787, 48860), (2443, 35740), (3490, 25018), (3574, 24430), (4886, 17870), (6980, 12509), (7148, 12215), (8935, 9772)]