28006860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66683}}^1$

素因数の和:66702

約数の個数: 48

約数和(自身を含む): 89623296

約数和(自身を除く): 61616436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 66683, 133366, 200049, 266732, 333415, 400098, 466781, 666830, 800196, 933562, 1000245, 1333660, 1400343, 1867124, 2000490, 2333905, 2800686, 4000980, 4667810, 5601372, 7001715, 9335620, 14003430, 28006860]

約数ペア:

[(1, 28006860), (2, 14003430), (3, 9335620), (4, 7001715), (5, 5601372), (6, 4667810), (7, 4000980), (10, 2800686), (12, 2333905), (14, 2000490), (15, 1867124), (20, 1400343), (21, 1333660), (28, 1000245), (30, 933562), (35, 800196), (42, 666830), (60, 466781), (70, 400098), (84, 333415), (105, 266732), (140, 200049), (210, 133366), (420, 66683)]