28134040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1487}}^1$

素因数の和:1552

約数の個数: 64

約数和(自身を含む): 70709760

約数和(自身を除く): 42575720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1487, 1720, 1892, 2365, 2974, 3784, 4730, 5948, 7435, 9460, 11896, 14870, 16357, 18920, 29740, 32714, 59480, 63941, 65428, 81785, 127882, 130856, 163570, 255764, 319705, 327140, 511528, 639410, 654280, 703351, 1278820, 1406702, 2557640, 2813404, 3516755, 5626808, 7033510, 14067020, 28134040]

約数ペア:

[(1, 28134040), (2, 14067020), (4, 7033510), (5, 5626808), (8, 3516755), (10, 2813404), (11, 2557640), (20, 1406702), (22, 1278820), (40, 703351), (43, 654280), (44, 639410), (55, 511528), (86, 327140), (88, 319705), (110, 255764), (172, 163570), (215, 130856), (220, 127882), (344, 81785), (430, 65428), (440, 63941), (473, 59480), (860, 32714), (946, 29740), (1487, 18920), (1720, 16357), (1892, 14870), (2365, 11896), (2974, 9460), (3784, 7435), (4730, 5948)]