30720582

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:477

約数の個数: 48

約数和(自身を含む): 69001920

約数和(自身を除く): 38281338

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 193, 222, 239, 333, 386, 478, 579, 666, 717, 1158, 1434, 1737, 2151, 3474, 4302, 7141, 8843, 14282, 17686, 21423, 26529, 42846, 46127, 53058, 64269, 79587, 92254, 128538, 138381, 159174, 276762, 415143, 830286, 1706699, 3413398, 5120097, 10240194, 15360291, 30720582]

約数ペア:

[(1, 30720582), (2, 15360291), (3, 10240194), (6, 5120097), (9, 3413398), (18, 1706699), (37, 830286), (74, 415143), (111, 276762), (193, 159174), (222, 138381), (239, 128538), (333, 92254), (386, 79587), (478, 64269), (579, 53058), (666, 46127), (717, 42846), (1158, 26529), (1434, 21423), (1737, 17686), (2151, 14282), (3474, 8843), (4302, 7141)]