21446320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5471}}^1$

素因数の和:5498

約数の個数: 60

約数和(自身を含む): 58014144

約数和(自身を除く): 36567824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5471, 10942, 21884, 27355, 38297, 43768, 54710, 76594, 87536, 109420, 153188, 191485, 218840, 268079, 306376, 382970, 437680, 536158, 612752, 765940, 1072316, 1340395, 1531880, 2144632, 2680790, 3063760, 4289264, 5361580, 10723160, 21446320]

約数ペア:

[(1, 21446320), (2, 10723160), (4, 5361580), (5, 4289264), (7, 3063760), (8, 2680790), (10, 2144632), (14, 1531880), (16, 1340395), (20, 1072316), (28, 765940), (35, 612752), (40, 536158), (49, 437680), (56, 382970), (70, 306376), (80, 268079), (98, 218840), (112, 191485), (140, 153188), (196, 109420), (245, 87536), (280, 76594), (392, 54710), (490, 43768), (560, 38297), (784, 27355), (980, 21884), (1960, 10942), (3920, 5471)]