209884920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{249863}}^1$

素因数の和:249884

約数の個数: 64

約数和(自身を含む): 719608320

約数和(自身を除く): 509723400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 249863, 499726, 749589, 999452, 1249315, 1499178, 1749041, 1998904, 2498630, 2998356, 3498082, 3747945, 4997260, 5247123, 5996712, 6996164, 7495890, 8745205, 9994520, 10494246, 13992328, 14991780, 17490410, 20988492, 26235615, 29983560, 34980820, 41976984, 52471230, 69961640, 104942460, 209884920]

約数ペア:

[(1, 209884920), (2, 104942460), (3, 69961640), (4, 52471230), (5, 41976984), (6, 34980820), (7, 29983560), (8, 26235615), (10, 20988492), (12, 17490410), (14, 14991780), (15, 13992328), (20, 10494246), (21, 9994520), (24, 8745205), (28, 7495890), (30, 6996164), (35, 5996712), (40, 5247123), (42, 4997260), (56, 3747945), (60, 3498082), (70, 2998356), (84, 2498630), (105, 1998904), (120, 1749041), (140, 1499178), (168, 1249315), (210, 999452), (280, 749589), (420, 499726), (840, 249863)]