216869560

素因数分解:

$2^3\times 5^1\times {\mathrm{5421739}}^1$

素因数の和:5421750

約数の個数: 16

約数和(自身を含む): 487956600

約数和(自身を除く): 271087040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5421739, 10843478, 21686956, 27108695, 43373912, 54217390, 108434780, 216869560]

約数ペア:

[(1, 216869560), (2, 108434780), (4, 54217390), (5, 43373912), (8, 27108695), (10, 21686956), (20, 10843478), (40, 5421739)]