20899780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{94999}}^1$

素因数の和:95019

約数の個数: 24

約数和(自身を含む): 47880000

約数和(自身を除く): 26980220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 94999, 189998, 379996, 474995, 949990, 1044989, 1899980, 2089978, 4179956, 5224945, 10449890, 20899780]

約数ペア:

[(1, 20899780), (2, 10449890), (4, 5224945), (5, 4179956), (10, 2089978), (11, 1899980), (20, 1044989), (22, 949990), (44, 474995), (55, 379996), (110, 189998), (220, 94999)]