19990736

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{3461}}^1$

素因数の和:3507

約数の個数: 30

約数和(自身を含む): 40889682

約数和(自身を除く): 20898946

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 361, 722, 1444, 2888, 3461, 5776, 6922, 13844, 27688, 55376, 65759, 131518, 263036, 526072, 1052144, 1249421, 2498842, 4997684, 9995368, 19990736]

約数ペア:

[(1, 19990736), (2, 9995368), (4, 4997684), (8, 2498842), (16, 1249421), (19, 1052144), (38, 526072), (76, 263036), (152, 131518), (304, 65759), (361, 55376), (722, 27688), (1444, 13844), (2888, 6922), (3461, 5776)]