399502078

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{31177}}^1$

素因数の和:31371

約数の個数: 16

約数和(自身を含む): 617324400

約数和(自身を除く): 217822322

約数列:

[1, 2, 43, 86, 149, 298, 6407, 12814, 31177, 62354, 1340611, 2681222, 4645373, 9290746, 199751039, 399502078]

約数ペア:

[(1, 399502078), (2, 199751039), (43, 9290746), (86, 4645373), (149, 2681222), (298, 1340611), (6407, 62354), (12814, 31177)]