200818660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{204917}}^1$

素因数の和:204940

約数の個数: 36

約数和(自身を含む): 490573692

約数和(自身を除く): 289755032

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 204917, 409834, 819668, 1024585, 1434419, 2049170, 2868838, 4098340, 5737676, 7172095, 10040933, 14344190, 20081866, 28688380, 40163732, 50204665, 100409330, 200818660]

約数ペア:

[(1, 200818660), (2, 100409330), (4, 50204665), (5, 40163732), (7, 28688380), (10, 20081866), (14, 14344190), (20, 10040933), (28, 7172095), (35, 5737676), (49, 4098340), (70, 2868838), (98, 2049170), (140, 1434419), (196, 1024585), (245, 819668), (490, 409834), (980, 204917)]