349715660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{17971}}^1$

素因数の和:18126

約数の個数: 48

約数和(自身を含む): 845402880

約数和(自身を除く): 495687220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 17971, 19460, 35942, 71884, 89855, 125797, 179710, 251594, 359420, 503188, 628985, 1257970, 2497969, 2515940, 4995938, 9991876, 12489845, 17485783, 24979690, 34971566, 49959380, 69943132, 87428915, 174857830, 349715660]

約数ペア:

[(1, 349715660), (2, 174857830), (4, 87428915), (5, 69943132), (7, 49959380), (10, 34971566), (14, 24979690), (20, 17485783), (28, 12489845), (35, 9991876), (70, 4995938), (139, 2515940), (140, 2497969), (278, 1257970), (556, 628985), (695, 503188), (973, 359420), (1390, 251594), (1946, 179710), (2780, 125797), (3892, 89855), (4865, 71884), (9730, 35942), (17971, 19460)]