38721680

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3533}}^1$

素因数の和:3683

約数の個数: 40

約数和(自身を含む): 90710712

約数和(自身を除く): 51989032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2740, 3533, 5480, 7066, 10960, 14132, 17665, 28264, 35330, 56528, 70660, 141320, 282640, 484021, 968042, 1936084, 2420105, 3872168, 4840210, 7744336, 9680420, 19360840, 38721680]

約数ペア:

[(1, 38721680), (2, 19360840), (4, 9680420), (5, 7744336), (8, 4840210), (10, 3872168), (16, 2420105), (20, 1936084), (40, 968042), (80, 484021), (137, 282640), (274, 141320), (548, 70660), (685, 56528), (1096, 35330), (1370, 28264), (2192, 17665), (2740, 14132), (3533, 10960), (5480, 7066)]