30708040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{691}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 76230720

約数和(自身を除く): 45522680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 101, 110, 202, 220, 404, 440, 505, 691, 808, 1010, 1111, 1382, 2020, 2222, 2764, 3455, 4040, 4444, 5528, 5555, 6910, 7601, 8888, 11110, 13820, 15202, 22220, 27640, 30404, 38005, 44440, 60808, 69791, 76010, 139582, 152020, 279164, 304040, 348955, 558328, 697910, 767701, 1395820, 1535402, 2791640, 3070804, 3838505, 6141608, 7677010, 15354020, 30708040]

約数ペア:

[(1, 30708040), (2, 15354020), (4, 7677010), (5, 6141608), (8, 3838505), (10, 3070804), (11, 2791640), (20, 1535402), (22, 1395820), (40, 767701), (44, 697910), (55, 558328), (88, 348955), (101, 304040), (110, 279164), (202, 152020), (220, 139582), (404, 76010), (440, 69791), (505, 60808), (691, 44440), (808, 38005), (1010, 30404), (1111, 27640), (1382, 22220), (2020, 15202), (2222, 13820), (2764, 11110), (3455, 8888), (4040, 7601), (4444, 6910), (5528, 5555)]