28243160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{64189}}^1$

素因数の和:64211

約数の個数: 32

約数和(自身を含む): 69325200

約数和(自身を除く): 41082040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 64189, 128378, 256756, 320945, 513512, 641890, 706079, 1283780, 1412158, 2567560, 2824316, 3530395, 5648632, 7060790, 14121580, 28243160]

約数ペア:

[(1, 28243160), (2, 14121580), (4, 7060790), (5, 5648632), (8, 3530395), (10, 2824316), (11, 2567560), (20, 1412158), (22, 1283780), (40, 706079), (44, 641890), (55, 513512), (88, 320945), (110, 256756), (220, 128378), (440, 64189)]