80803940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11779}}^1$

素因数の和:11809

約数の個数: 48

約数和(自身を含む): 197904000

約数和(自身を除く): 117100060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11779, 23558, 47116, 58895, 82453, 117790, 164906, 235580, 329812, 412265, 577171, 824530, 1154342, 1649060, 2308684, 2885855, 4040197, 5771710, 8080394, 11543420, 16160788, 20200985, 40401970, 80803940]

約数ペア:

[(1, 80803940), (2, 40401970), (4, 20200985), (5, 16160788), (7, 11543420), (10, 8080394), (14, 5771710), (20, 4040197), (28, 2885855), (35, 2308684), (49, 1649060), (70, 1154342), (98, 824530), (140, 577171), (196, 412265), (245, 329812), (343, 235580), (490, 164906), (686, 117790), (980, 82453), (1372, 58895), (1715, 47116), (3430, 23558), (6860, 11779)]