90745840

素因数分解:

$2^4\times 5^1\times {\mathrm{179}}^1\times {\mathrm{6337}}^1$

素因数の和:6529

約数の個数: 40

約数和(自身を含む): 212196240

約数和(自身を除く): 121450400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 179, 358, 716, 895, 1432, 1790, 2864, 3580, 6337, 7160, 12674, 14320, 25348, 31685, 50696, 63370, 101392, 126740, 253480, 506960, 1134323, 2268646, 4537292, 5671615, 9074584, 11343230, 18149168, 22686460, 45372920, 90745840]

約数ペア:

[(1, 90745840), (2, 45372920), (4, 22686460), (5, 18149168), (8, 11343230), (10, 9074584), (16, 5671615), (20, 4537292), (40, 2268646), (80, 1134323), (179, 506960), (358, 253480), (716, 126740), (895, 101392), (1432, 63370), (1790, 50696), (2864, 31685), (3580, 25348), (6337, 14320), (7160, 12674)]