394480

素因数分解:

$2^4\times 5^1\times {\mathrm{4931}}^1$

素因数の和:4944

約数の個数: 20

約数和(自身を含む): 917352

約数和(自身を除く): 522872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4931, 9862, 19724, 24655, 39448, 49310, 78896, 98620, 197240, 394480]

約数ペア:

[(1, 394480), (2, 197240), (4, 98620), (5, 78896), (8, 49310), (10, 39448), (16, 24655), (20, 19724), (40, 9862), (80, 4931)]