1398214960

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{260861}}^1$

素因数の和:260941

約数の個数: 40

約数和(自身を含む): 3299382576

約数和(自身を除く): 1901167616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 260861, 521722, 1043444, 1304305, 2086888, 2608610, 4173776, 5217220, 10434440, 17477687, 20868880, 34955374, 69910748, 87388435, 139821496, 174776870, 279642992, 349553740, 699107480, 1398214960]

約数ペア:

[(1, 1398214960), (2, 699107480), (4, 349553740), (5, 279642992), (8, 174776870), (10, 139821496), (16, 87388435), (20, 69910748), (40, 34955374), (67, 20868880), (80, 17477687), (134, 10434440), (268, 5217220), (335, 4173776), (536, 2608610), (670, 2086888), (1072, 1304305), (1340, 1043444), (2680, 521722), (5360, 260861)]