219612820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{3541}}^1$

素因数の和:4000

約数の個数: 48

約数和(自身を含む): 528409728

約数和(自身を除く): 308796908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 886, 1772, 2215, 3101, 3541, 4430, 6202, 7082, 8860, 12404, 14164, 15505, 17705, 24787, 31010, 35410, 49574, 62020, 70820, 99148, 123935, 247870, 495740, 1568663, 3137326, 6274652, 7843315, 10980641, 15686630, 21961282, 31373260, 43922564, 54903205, 109806410, 219612820]

約数ペア:

[(1, 219612820), (2, 109806410), (4, 54903205), (5, 43922564), (7, 31373260), (10, 21961282), (14, 15686630), (20, 10980641), (28, 7843315), (35, 6274652), (70, 3137326), (140, 1568663), (443, 495740), (886, 247870), (1772, 123935), (2215, 99148), (3101, 70820), (3541, 62020), (4430, 49574), (6202, 35410), (7082, 31010), (8860, 24787), (12404, 17705), (14164, 15505)]