3912440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 10238400

約数和(自身を除く): 6325960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 157, 178, 280, 314, 356, 445, 623, 628, 712, 785, 890, 1099, 1246, 1256, 1570, 1780, 2198, 2492, 3115, 3140, 3560, 4396, 4984, 5495, 6230, 6280, 8792, 10990, 12460, 13973, 21980, 24920, 27946, 43960, 55892, 69865, 97811, 111784, 139730, 195622, 279460, 391244, 489055, 558920, 782488, 978110, 1956220, 3912440]

約数ペア:

[(1, 3912440), (2, 1956220), (4, 978110), (5, 782488), (7, 558920), (8, 489055), (10, 391244), (14, 279460), (20, 195622), (28, 139730), (35, 111784), (40, 97811), (56, 69865), (70, 55892), (89, 43960), (140, 27946), (157, 24920), (178, 21980), (280, 13973), (314, 12460), (356, 10990), (445, 8792), (623, 6280), (628, 6230), (712, 5495), (785, 4984), (890, 4396), (1099, 3560), (1246, 3140), (1256, 3115), (1570, 2492), (1780, 2198)]