12647900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1601}}^1$

素因数の和:1694

約数の個数: 36

約数和(自身を含む): 27810720

約数和(自身を除く): 15162820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1601, 1975, 3202, 3950, 6404, 7900, 8005, 16010, 32020, 40025, 80050, 126479, 160100, 252958, 505916, 632395, 1264790, 2529580, 3161975, 6323950, 12647900]

約数ペア:

[(1, 12647900), (2, 6323950), (4, 3161975), (5, 2529580), (10, 1264790), (20, 632395), (25, 505916), (50, 252958), (79, 160100), (100, 126479), (158, 80050), (316, 40025), (395, 32020), (790, 16010), (1580, 8005), (1601, 7900), (1975, 6404), (3202, 3950)]