215202920

素因数分解:

$2^3\times 5^1\times {\mathrm{353}}^1\times {\mathrm{15241}}^1$

素因数の和:15605

約数の個数: 32

約数和(自身を含む): 485610120

約数和(自身を除く): 270407200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 353, 706, 1412, 1765, 2824, 3530, 7060, 14120, 15241, 30482, 60964, 76205, 121928, 152410, 304820, 609640, 5380073, 10760146, 21520292, 26900365, 43040584, 53800730, 107601460, 215202920]

約数ペア:

[(1, 215202920), (2, 107601460), (4, 53800730), (5, 43040584), (8, 26900365), (10, 21520292), (20, 10760146), (40, 5380073), (353, 609640), (706, 304820), (1412, 152410), (1765, 121928), (2824, 76205), (3530, 60964), (7060, 30482), (14120, 15241)]