1982900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:344

約数の個数: 36

約数和(自身を含む): 4374720

約数和(自身を除く): 2391820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 251, 316, 395, 502, 790, 1004, 1255, 1580, 1975, 2510, 3950, 5020, 6275, 7900, 12550, 19829, 25100, 39658, 79316, 99145, 198290, 396580, 495725, 991450, 1982900]

約数ペア:

[(1, 1982900), (2, 991450), (4, 495725), (5, 396580), (10, 198290), (20, 99145), (25, 79316), (50, 39658), (79, 25100), (100, 19829), (158, 12550), (251, 7900), (316, 6275), (395, 5020), (502, 3950), (790, 2510), (1004, 1975), (1255, 1580)]