19880498540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20286223}}^1$

素因数の和:20286246

約数の個数: 36

約数和(自身を含む): 48565220256

約数和(自身を除く): 28684721716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20286223, 40572446, 81144892, 101431115, 142003561, 202862230, 284007122, 405724460, 568014244, 710017805, 994024927, 1420035610, 1988049854, 2840071220, 3976099708, 4970124635, 9940249270, 19880498540]

約数ペア:

[(1, 19880498540), (2, 9940249270), (4, 4970124635), (5, 3976099708), (7, 2840071220), (10, 1988049854), (14, 1420035610), (20, 994024927), (28, 710017805), (35, 568014244), (49, 405724460), (70, 284007122), (98, 202862230), (140, 142003561), (196, 101431115), (245, 81144892), (490, 40572446), (980, 20286223)]