123658780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{2621}}^1$

素因数の和:2974

約数の個数: 48

約数和(自身を含む): 297775296

約数和(自身を除く): 174116516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 337, 674, 1348, 1685, 2359, 2621, 3370, 4718, 5242, 6740, 9436, 10484, 11795, 13105, 18347, 23590, 26210, 36694, 47180, 52420, 73388, 91735, 183470, 366940, 883277, 1766554, 3533108, 4416385, 6182939, 8832770, 12365878, 17665540, 24731756, 30914695, 61829390, 123658780]

約数ペア:

[(1, 123658780), (2, 61829390), (4, 30914695), (5, 24731756), (7, 17665540), (10, 12365878), (14, 8832770), (20, 6182939), (28, 4416385), (35, 3533108), (70, 1766554), (140, 883277), (337, 366940), (674, 183470), (1348, 91735), (1685, 73388), (2359, 52420), (2621, 47180), (3370, 36694), (4718, 26210), (5242, 23590), (6740, 18347), (9436, 13105), (10484, 11795)]