12818840

素因数分解:

$2^3\times 5^1\times {\mathrm{320471}}^1$

素因数の和:320482

約数の個数: 16

約数和(自身を含む): 28842480

約数和(自身を除く): 16023640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 320471, 640942, 1281884, 1602355, 2563768, 3204710, 6409420, 12818840]

約数ペア:

[(1, 12818840), (2, 6409420), (4, 3204710), (5, 2563768), (8, 1602355), (10, 1281884), (20, 640942), (40, 320471)]