1091780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{691}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 2325120

約数和(自身を除く): 1233340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 691, 790, 1382, 1580, 2764, 3455, 6910, 13820, 54589, 109178, 218356, 272945, 545890, 1091780]

約数ペア:

[(1, 1091780), (2, 545890), (4, 272945), (5, 218356), (10, 109178), (20, 54589), (79, 13820), (158, 6910), (316, 3455), (395, 2764), (691, 1580), (790, 1382)]