18028922440

素因数分解:

$2^3\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{442319}}^1$

素因数の和:443349

約数の個数: 32

約数和(自身を含む): 40604976000

約数和(自身を除く): 22576053560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1019, 2038, 4076, 5095, 8152, 10190, 20380, 40760, 442319, 884638, 1769276, 2211595, 3538552, 4423190, 8846380, 17692760, 450723061, 901446122, 1802892244, 2253615305, 3605784488, 4507230610, 9014461220, 18028922440]

約数ペア:

[(1, 18028922440), (2, 9014461220), (4, 4507230610), (5, 3605784488), (8, 2253615305), (10, 1802892244), (20, 901446122), (40, 450723061), (1019, 17692760), (2038, 8846380), (4076, 4423190), (5095, 3538552), (8152, 2211595), (10190, 1769276), (20380, 884638), (40760, 442319)]