78156280

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{24733}}^1$

素因数の和:24823

約数の個数: 32

約数和(自身を含む): 178084800

約数和(自身を除く): 99928520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 24733, 49466, 98932, 123665, 197864, 247330, 494660, 989320, 1953907, 3907814, 7815628, 9769535, 15631256, 19539070, 39078140, 78156280]

約数ペア:

[(1, 78156280), (2, 39078140), (4, 19539070), (5, 15631256), (8, 9769535), (10, 7815628), (20, 3907814), (40, 1953907), (79, 989320), (158, 494660), (316, 247330), (395, 197864), (632, 123665), (790, 98932), (1580, 49466), (3160, 24733)]