157020820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{3623}}^1$

素因数の和:3840

約数の個数: 48

約数和(自身を含む): 361646208

約数和(自身を除く): 204625388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3623, 3940, 4334, 7246, 8668, 10835, 14492, 18115, 21670, 36230, 39853, 43340, 72460, 79706, 159412, 199265, 398530, 713731, 797060, 1427462, 2854924, 3568655, 7137310, 7851041, 14274620, 15702082, 31404164, 39255205, 78510410, 157020820]

約数ペア:

[(1, 157020820), (2, 78510410), (4, 39255205), (5, 31404164), (10, 15702082), (11, 14274620), (20, 7851041), (22, 7137310), (44, 3568655), (55, 2854924), (110, 1427462), (197, 797060), (220, 713731), (394, 398530), (788, 199265), (985, 159412), (1970, 79706), (2167, 72460), (3623, 43340), (3940, 39853), (4334, 36230), (7246, 21670), (8668, 18115), (10835, 14492)]