19267220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137623}}^1$

素因数の和:137639

約数の個数: 24

約数和(自身を含む): 46241664

約数和(自身を除く): 26974444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137623, 275246, 550492, 688115, 963361, 1376230, 1926722, 2752460, 3853444, 4816805, 9633610, 19267220]

約数ペア:

[(1, 19267220), (2, 9633610), (4, 4816805), (5, 3853444), (7, 2752460), (10, 1926722), (14, 1376230), (20, 963361), (28, 688115), (35, 550492), (70, 275246), (140, 137623)]