249277840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{1607}}^1$

素因数の和:1904

約数の個数: 80

約数和(自身を含む): 665171712

約数和(自身を除く): 415893872

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 277, 280, 554, 560, 1108, 1385, 1607, 1939, 2216, 2770, 3214, 3878, 4432, 5540, 6428, 7756, 8035, 9695, 11080, 11249, 12856, 15512, 16070, 19390, 22160, 22498, 25712, 31024, 32140, 38780, 44996, 56245, 64280, 77560, 89992, 112490, 128560, 155120, 179984, 224980, 445139, 449960, 890278, 899920, 1780556, 2225695, 3115973, 3561112, 4451390, 6231946, 7122224, 8902780, 12463892, 15579865, 17805560, 24927784, 31159730, 35611120, 49855568, 62319460, 124638920, 249277840]

約数ペア:

[(1, 249277840), (2, 124638920), (4, 62319460), (5, 49855568), (7, 35611120), (8, 31159730), (10, 24927784), (14, 17805560), (16, 15579865), (20, 12463892), (28, 8902780), (35, 7122224), (40, 6231946), (56, 4451390), (70, 3561112), (80, 3115973), (112, 2225695), (140, 1780556), (277, 899920), (280, 890278), (554, 449960), (560, 445139), (1108, 224980), (1385, 179984), (1607, 155120), (1939, 128560), (2216, 112490), (2770, 89992), (3214, 77560), (3878, 64280), (4432, 56245), (5540, 44996), (6428, 38780), (7756, 32140), (8035, 31024), (9695, 25712), (11080, 22498), (11249, 22160), (12856, 19390), (15512, 16070)]