678476720

素因数分解:

$2^4\times 5^1\times {\mathrm{8480959}}^1$

素因数の和:8480972

約数の個数: 20

約数和(自身を含む): 1577458560

約数和(自身を除く): 898981840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 8480959, 16961918, 33923836, 42404795, 67847672, 84809590, 135695344, 169619180, 339238360, 678476720]

約数ペア:

[(1, 678476720), (2, 339238360), (4, 169619180), (5, 135695344), (8, 84809590), (10, 67847672), (16, 42404795), (20, 33923836), (40, 16961918), (80, 8480959)]