21628280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{23509}}^1$

素因数の和:23543

約数の個数: 32

約数和(自身を含む): 50781600

約数和(自身を除く): 29153320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 23509, 47018, 94036, 117545, 188072, 235090, 470180, 540707, 940360, 1081414, 2162828, 2703535, 4325656, 5407070, 10814140, 21628280]

約数ペア:

[(1, 21628280), (2, 10814140), (4, 5407070), (5, 4325656), (8, 2703535), (10, 2162828), (20, 1081414), (23, 940360), (40, 540707), (46, 470180), (92, 235090), (115, 188072), (184, 117545), (230, 94036), (460, 47018), (920, 23509)]