17419420

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2239}}^1$

素因数の和:2637

約数の個数: 24

約数和(自身を含む): 36691200

約数和(自身を除く): 19271780

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 2239, 3890, 4478, 7780, 8956, 11195, 22390, 44780, 870971, 1741942, 3483884, 4354855, 8709710, 17419420]

約数ペア:

[(1, 17419420), (2, 8709710), (4, 4354855), (5, 3483884), (10, 1741942), (20, 870971), (389, 44780), (778, 22390), (1556, 11195), (1945, 8956), (2239, 7780), (3890, 4478)]