15976660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{821}}^1$

素因数の和:976

約数の個数: 48

約数和(自身を含む): 38666880

約数和(自身を除く): 22690220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 821, 973, 1390, 1642, 1946, 2780, 3284, 3892, 4105, 4865, 5747, 8210, 9730, 11494, 16420, 19460, 22988, 28735, 57470, 114119, 114940, 228238, 456476, 570595, 798833, 1141190, 1597666, 2282380, 3195332, 3994165, 7988330, 15976660]

約数ペア:

[(1, 15976660), (2, 7988330), (4, 3994165), (5, 3195332), (7, 2282380), (10, 1597666), (14, 1141190), (20, 798833), (28, 570595), (35, 456476), (70, 228238), (139, 114940), (140, 114119), (278, 57470), (556, 28735), (695, 22988), (821, 19460), (973, 16420), (1390, 11494), (1642, 9730), (1946, 8210), (2780, 5747), (3284, 4865), (3892, 4105)]