398730238

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{2099}}^1\times {\mathrm{4999}}^1$

素因数の和:7119

約数の個数: 16

約数和(自身を含む): 630000000

約数和(自身を除く): 231269762

約数列:

[1, 2, 19, 38, 2099, 4198, 4999, 9998, 39881, 79762, 94981, 189962, 10492901, 20985802, 199365119, 398730238]

約数ペア:

[(1, 398730238), (2, 199365119), (19, 20985802), (38, 10492901), (2099, 189962), (4198, 94981), (4999, 79762), (9998, 39881)]