209215850

素因数分解:

$2^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{30103}}^1$

素因数の和:30254

約数の個数: 24

約数和(自身を含む): 391954080

約数和(自身を除く): 182738230

約数列:

[1, 2, 5, 10, 25, 50, 139, 278, 695, 1390, 3475, 6950, 30103, 60206, 150515, 301030, 752575, 1505150, 4184317, 8368634, 20921585, 41843170, 104607925, 209215850]

約数ペア:

[(1, 209215850), (2, 104607925), (5, 41843170), (10, 20921585), (25, 8368634), (50, 4184317), (139, 1505150), (278, 752575), (695, 301030), (1390, 150515), (3475, 60206), (6950, 30103)]