222488440

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{78341}}^1$

素因数の和:78423

約数の個数: 32

約数和(自身を含む): 507656160

約数和(自身を除く): 285167720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 78341, 156682, 313364, 391705, 626728, 783410, 1566820, 3133640, 5562211, 11124422, 22248844, 27811055, 44497688, 55622110, 111244220, 222488440]

約数ペア:

[(1, 222488440), (2, 111244220), (4, 55622110), (5, 44497688), (8, 27811055), (10, 22248844), (20, 11124422), (40, 5562211), (71, 3133640), (142, 1566820), (284, 783410), (355, 626728), (568, 391705), (710, 313364), (1420, 156682), (2840, 78341)]