8637640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{293}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 21591360

約数和(自身を除く): 12953720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 67, 88, 110, 134, 220, 268, 293, 335, 440, 536, 586, 670, 737, 1172, 1340, 1465, 1474, 2344, 2680, 2930, 2948, 3223, 3685, 5860, 5896, 6446, 7370, 11720, 12892, 14740, 16115, 19631, 25784, 29480, 32230, 39262, 64460, 78524, 98155, 128920, 157048, 196310, 215941, 392620, 431882, 785240, 863764, 1079705, 1727528, 2159410, 4318820, 8637640]

約数ペア:

[(1, 8637640), (2, 4318820), (4, 2159410), (5, 1727528), (8, 1079705), (10, 863764), (11, 785240), (20, 431882), (22, 392620), (40, 215941), (44, 196310), (55, 157048), (67, 128920), (88, 98155), (110, 78524), (134, 64460), (220, 39262), (268, 32230), (293, 29480), (335, 25784), (440, 19631), (536, 16115), (586, 14740), (670, 12892), (737, 11720), (1172, 7370), (1340, 6446), (1465, 5896), (1474, 5860), (2344, 3685), (2680, 3223), (2930, 2948)]