212858500

素因数分解:

$2^2\times 5^3\times {\mathrm{197}}^1\times {\mathrm{2161}}^1$

素因数の和:2377

約数の個数: 48

約数和(自身を含む): 467458992

約数和(自身を除く): 254600492

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 197, 250, 394, 500, 788, 985, 1970, 2161, 3940, 4322, 4925, 8644, 9850, 10805, 19700, 21610, 24625, 43220, 49250, 54025, 98500, 108050, 216100, 270125, 425717, 540250, 851434, 1080500, 1702868, 2128585, 4257170, 8514340, 10642925, 21285850, 42571700, 53214625, 106429250, 212858500]

約数ペア:

[(1, 212858500), (2, 106429250), (4, 53214625), (5, 42571700), (10, 21285850), (20, 10642925), (25, 8514340), (50, 4257170), (100, 2128585), (125, 1702868), (197, 1080500), (250, 851434), (394, 540250), (500, 425717), (788, 270125), (985, 216100), (1970, 108050), (2161, 98500), (3940, 54025), (4322, 49250), (4925, 43220), (8644, 24625), (9850, 21610), (10805, 19700)]