18534728

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2085

約数の個数: 32

約数和(自身を含む): 37200000

約数和(自身を除く): 18665272

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 1999, 2318, 3998, 4636, 7996, 9272, 15992, 37981, 75962, 121939, 151924, 243878, 303848, 487756, 975512, 2316841, 4633682, 9267364, 18534728]

約数ペア:

[(1, 18534728), (2, 9267364), (4, 4633682), (8, 2316841), (19, 975512), (38, 487756), (61, 303848), (76, 243878), (122, 151924), (152, 121939), (244, 75962), (488, 37981), (1159, 15992), (1999, 9272), (2318, 7996), (3998, 4636)]