18156740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2447}}^1$

素因数の和:2516

約数の個数: 48

約数和(自身を含む): 44416512

約数和(自身を除く): 26259772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1855, 2447, 3710, 4894, 7420, 9788, 12235, 17129, 24470, 34258, 48940, 68516, 85645, 129691, 171290, 259382, 342580, 518764, 648455, 907837, 1296910, 1815674, 2593820, 3631348, 4539185, 9078370, 18156740]

約数ペア:

[(1, 18156740), (2, 9078370), (4, 4539185), (5, 3631348), (7, 2593820), (10, 1815674), (14, 1296910), (20, 907837), (28, 648455), (35, 518764), (53, 342580), (70, 259382), (106, 171290), (140, 129691), (212, 85645), (265, 68516), (371, 48940), (530, 34258), (742, 24470), (1060, 17129), (1484, 12235), (1855, 9788), (2447, 7420), (3710, 4894)]