394520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1409}}^1$

素因数の和:1427

約数の個数: 32

約数和(自身を含む): 1015200

約数和(自身を除く): 620680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1409, 2818, 5636, 7045, 9863, 11272, 14090, 19726, 28180, 39452, 49315, 56360, 78904, 98630, 197260, 394520]

約数ペア:

[(1, 394520), (2, 197260), (4, 98630), (5, 78904), (7, 56360), (8, 49315), (10, 39452), (14, 28180), (20, 19726), (28, 14090), (35, 11272), (40, 9863), (56, 7045), (70, 5636), (140, 2818), (280, 1409)]