20163808208

素因数分解:

$2^4\times {\mathrm{3907}}^1\times {\mathrm{322559}}^1$

素因数の和:326474

約数の個数: 20

約数和(自身を含む): 39077498880

約数和(自身を除く): 18913690672

約数列:

[1, 2, 4, 8, 16, 3907, 7814, 15628, 31256, 62512, 322559, 645118, 1290236, 2580472, 5160944, 1260238013, 2520476026, 5040952052, 10081904104, 20163808208]

約数ペア:

[(1, 20163808208), (2, 10081904104), (4, 5040952052), (8, 2520476026), (16, 1260238013), (3907, 5160944), (7814, 2580472), (15628, 1290236), (31256, 645118), (62512, 322559)]