256512900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{122149}}^1$

素因数の和:122173

約数の個数: 72

約数和(自身を含む): 848209600

約数和(自身を除く): 591696700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 122149, 244298, 366447, 488596, 610745, 732894, 855043, 1221490, 1465788, 1710086, 1832235, 2442980, 2565129, 3053725, 3420172, 3664470, 4275215, 5130258, 6107450, 7328940, 8550430, 9161175, 10260516, 12214900, 12825645, 17100860, 18322350, 21376075, 25651290, 36644700, 42752150, 51302580, 64128225, 85504300, 128256450, 256512900]

約数ペア:

[(1, 256512900), (2, 128256450), (3, 85504300), (4, 64128225), (5, 51302580), (6, 42752150), (7, 36644700), (10, 25651290), (12, 21376075), (14, 18322350), (15, 17100860), (20, 12825645), (21, 12214900), (25, 10260516), (28, 9161175), (30, 8550430), (35, 7328940), (42, 6107450), (50, 5130258), (60, 4275215), (70, 3664470), (75, 3420172), (84, 3053725), (100, 2565129), (105, 2442980), (140, 1832235), (150, 1710086), (175, 1465788), (210, 1221490), (300, 855043), (350, 732894), (420, 610745), (525, 488596), (700, 366447), (1050, 244298), (2100, 122149)]