214939720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{75683}}^1$

素因数の和:75765

約数の個数: 32

約数和(自身を含む): 490432320

約数和(自身を除く): 275492600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 75683, 151366, 302732, 378415, 605464, 756830, 1513660, 3027320, 5373493, 10746986, 21493972, 26867465, 42987944, 53734930, 107469860, 214939720]

約数ペア:

[(1, 214939720), (2, 107469860), (4, 53734930), (5, 42987944), (8, 26867465), (10, 21493972), (20, 10746986), (40, 5373493), (71, 3027320), (142, 1513660), (284, 756830), (355, 605464), (568, 378415), (710, 302732), (1420, 151366), (2840, 75683)]