68707120

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19973}}^1$

素因数の和:20029

約数の個数: 40

約数和(自身を含む): 163467216

約数和(自身を除く): 94760096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19973, 39946, 79892, 99865, 159784, 199730, 319568, 399460, 798920, 858839, 1597840, 1717678, 3435356, 4294195, 6870712, 8588390, 13741424, 17176780, 34353560, 68707120]

約数ペア:

[(1, 68707120), (2, 34353560), (4, 17176780), (5, 13741424), (8, 8588390), (10, 6870712), (16, 4294195), (20, 3435356), (40, 1717678), (43, 1597840), (80, 858839), (86, 798920), (172, 399460), (215, 319568), (344, 199730), (430, 159784), (688, 99865), (860, 79892), (1720, 39946), (3440, 19973)]