20803160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74297}}^1$

素因数の和:74315

約数の個数: 32

約数和(自身を含む): 53494560

約数和(自身を除く): 32691400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74297, 148594, 297188, 371485, 520079, 594376, 742970, 1040158, 1485940, 2080316, 2600395, 2971880, 4160632, 5200790, 10401580, 20803160]

約数ペア:

[(1, 20803160), (2, 10401580), (4, 5200790), (5, 4160632), (7, 2971880), (8, 2600395), (10, 2080316), (14, 1485940), (20, 1040158), (28, 742970), (35, 594376), (40, 520079), (56, 371485), (70, 297188), (140, 148594), (280, 74297)]