1809100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:322

約数の個数: 36

約数和(自身を含む): 3992800

約数和(自身を除く): 2183700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 229, 316, 395, 458, 790, 916, 1145, 1580, 1975, 2290, 3950, 4580, 5725, 7900, 11450, 18091, 22900, 36182, 72364, 90455, 180910, 361820, 452275, 904550, 1809100]

約数ペア:

[(1, 1809100), (2, 904550), (4, 452275), (5, 361820), (10, 180910), (20, 90455), (25, 72364), (50, 36182), (79, 22900), (100, 18091), (158, 11450), (229, 7900), (316, 5725), (395, 4580), (458, 3950), (790, 2290), (916, 1975), (1145, 1580)]