15680840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{56003}}^1$

素因数の和:56021

約数の個数: 32

約数和(自身を含む): 40322880

約数和(自身を除く): 24642040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 56003, 112006, 224012, 280015, 392021, 448024, 560030, 784042, 1120060, 1568084, 1960105, 2240120, 3136168, 3920210, 7840420, 15680840]

約数ペア:

[(1, 15680840), (2, 7840420), (4, 3920210), (5, 3136168), (7, 2240120), (8, 1960105), (10, 1568084), (14, 1120060), (20, 784042), (28, 560030), (35, 448024), (40, 392021), (56, 280015), (70, 224012), (140, 112006), (280, 56003)]