208216540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{9473}}^1$

素因数の和:9646

約数の個数: 48

約数和(自身を含む): 502955712

約数和(自身を除く): 294739172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 9473, 10990, 18946, 21980, 37892, 47365, 66311, 94730, 132622, 189460, 265244, 331555, 663110, 1326220, 1487261, 2974522, 5949044, 7436305, 10410827, 14872610, 20821654, 29745220, 41643308, 52054135, 104108270, 208216540]

約数ペア:

[(1, 208216540), (2, 104108270), (4, 52054135), (5, 41643308), (7, 29745220), (10, 20821654), (14, 14872610), (20, 10410827), (28, 7436305), (35, 5949044), (70, 2974522), (140, 1487261), (157, 1326220), (314, 663110), (628, 331555), (785, 265244), (1099, 189460), (1570, 132622), (2198, 94730), (3140, 66311), (4396, 47365), (5495, 37892), (9473, 21980), (10990, 18946)]