1956220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 4777920

約数和(自身を除く): 2821700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 157, 178, 314, 356, 445, 623, 628, 785, 890, 1099, 1246, 1570, 1780, 2198, 2492, 3115, 3140, 4396, 5495, 6230, 10990, 12460, 13973, 21980, 27946, 55892, 69865, 97811, 139730, 195622, 279460, 391244, 489055, 978110, 1956220]

約数ペア:

[(1, 1956220), (2, 978110), (4, 489055), (5, 391244), (7, 279460), (10, 195622), (14, 139730), (20, 97811), (28, 69865), (35, 55892), (70, 27946), (89, 21980), (140, 13973), (157, 12460), (178, 10990), (314, 6230), (356, 5495), (445, 4396), (623, 3140), (628, 3115), (785, 2492), (890, 2198), (1099, 1780), (1246, 1570)]