1401454880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{178757}}^1$

素因数の和:178786

約数の個数: 72

約数和(自身を含む): 3851519868

約数和(自身を除く): 2450064988

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 178757, 357514, 715028, 893785, 1251299, 1430056, 1787570, 2502598, 2860112, 3575140, 5005196, 5720224, 6256495, 7150280, 8759093, 10010392, 12512990, 14300560, 17518186, 20020784, 25025980, 28601120, 35036372, 40041568, 43795465, 50051960, 70072744, 87590930, 100103920, 140145488, 175181860, 200207840, 280290976, 350363720, 700727440, 1401454880]

約数ペア:

[(1, 1401454880), (2, 700727440), (4, 350363720), (5, 280290976), (7, 200207840), (8, 175181860), (10, 140145488), (14, 100103920), (16, 87590930), (20, 70072744), (28, 50051960), (32, 43795465), (35, 40041568), (40, 35036372), (49, 28601120), (56, 25025980), (70, 20020784), (80, 17518186), (98, 14300560), (112, 12512990), (140, 10010392), (160, 8759093), (196, 7150280), (224, 6256495), (245, 5720224), (280, 5005196), (392, 3575140), (490, 2860112), (560, 2502598), (784, 1787570), (980, 1430056), (1120, 1251299), (1568, 893785), (1960, 715028), (3920, 357514), (7840, 178757)]