78167216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{661}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 160071600

約数和(自身を除く): 81904384

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 389, 661, 778, 1322, 1556, 2644, 3112, 5288, 6224, 7391, 10576, 12559, 14782, 25118, 29564, 50236, 59128, 100472, 118256, 200944, 257129, 514258, 1028516, 2057032, 4114064, 4885451, 9770902, 19541804, 39083608, 78167216]

約数ペア:

[(1, 78167216), (2, 39083608), (4, 19541804), (8, 9770902), (16, 4885451), (19, 4114064), (38, 2057032), (76, 1028516), (152, 514258), (304, 257129), (389, 200944), (661, 118256), (778, 100472), (1322, 59128), (1556, 50236), (2644, 29564), (3112, 25118), (5288, 14782), (6224, 12559), (7391, 10576)]