1815640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2389}}^1$

素因数の和:2419

約数の個数: 32

約数和(自身を含む): 4302000

約数和(自身を除く): 2486360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 2389, 4778, 9556, 11945, 19112, 23890, 45391, 47780, 90782, 95560, 181564, 226955, 363128, 453910, 907820, 1815640]

約数ペア:

[(1, 1815640), (2, 907820), (4, 453910), (5, 363128), (8, 226955), (10, 181564), (19, 95560), (20, 90782), (38, 47780), (40, 45391), (76, 23890), (95, 19112), (152, 11945), (190, 9556), (380, 4778), (760, 2389)]