28270240

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1621}}^1$

素因数の和:1745

約数の個数: 48

約数和(自身を含む): 67442760

約数和(自身を除く): 39172520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1621, 1744, 2180, 3242, 3488, 4360, 6484, 8105, 8720, 12968, 16210, 17440, 25936, 32420, 51872, 64840, 129680, 176689, 259360, 353378, 706756, 883445, 1413512, 1766890, 2827024, 3533780, 5654048, 7067560, 14135120, 28270240]

約数ペア:

[(1, 28270240), (2, 14135120), (4, 7067560), (5, 5654048), (8, 3533780), (10, 2827024), (16, 1766890), (20, 1413512), (32, 883445), (40, 706756), (80, 353378), (109, 259360), (160, 176689), (218, 129680), (436, 64840), (545, 51872), (872, 32420), (1090, 25936), (1621, 17440), (1744, 16210), (2180, 12968), (3242, 8720), (3488, 8105), (4360, 6484)]