807940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 2016000

約数和(自身を除く): 1208060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 199, 203, 290, 398, 406, 580, 796, 812, 995, 1015, 1393, 1990, 2030, 2786, 3980, 4060, 5572, 5771, 6965, 11542, 13930, 23084, 27860, 28855, 40397, 57710, 80794, 115420, 161588, 201985, 403970, 807940]

約数ペア:

[(1, 807940), (2, 403970), (4, 201985), (5, 161588), (7, 115420), (10, 80794), (14, 57710), (20, 40397), (28, 28855), (29, 27860), (35, 23084), (58, 13930), (70, 11542), (116, 6965), (140, 5771), (145, 5572), (199, 4060), (203, 3980), (290, 2786), (398, 2030), (406, 1990), (580, 1393), (796, 1015), (812, 995)]