620217

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 40

約数和(自身を含む): 1084160

約数和(自身を除く): 463943

約数列:

[1, 3, 9, 13, 19, 27, 31, 39, 57, 81, 93, 117, 171, 247, 279, 351, 403, 513, 589, 741, 837, 1053, 1209, 1539, 1767, 2223, 2511, 3627, 5301, 6669, 7657, 10881, 15903, 20007, 22971, 32643, 47709, 68913, 206739, 620217]

約数ペア:

[(1, 620217), (3, 206739), (9, 68913), (13, 47709), (19, 32643), (27, 22971), (31, 20007), (39, 15903), (57, 10881), (81, 7657), (93, 6669), (117, 5301), (171, 3627), (247, 2511), (279, 2223), (351, 1767), (403, 1539), (513, 1209), (589, 1053), (741, 837)]