80906840

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5897}}^1$

素因数の和:5929

約数の個数: 64

約数和(自身を含む): 212328000

約数和(自身を除く): 131421160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 5897, 6860, 11794, 13720, 23588, 29485, 41279, 47176, 58970, 82558, 117940, 165116, 206395, 235880, 288953, 330232, 412790, 577906, 825580, 1155812, 1444765, 1651160, 2022671, 2311624, 2889530, 4045342, 5779060, 8090684, 10113355, 11558120, 16181368, 20226710, 40453420, 80906840]

約数ペア:

[(1, 80906840), (2, 40453420), (4, 20226710), (5, 16181368), (7, 11558120), (8, 10113355), (10, 8090684), (14, 5779060), (20, 4045342), (28, 2889530), (35, 2311624), (40, 2022671), (49, 1651160), (56, 1444765), (70, 1155812), (98, 825580), (140, 577906), (196, 412790), (245, 330232), (280, 288953), (343, 235880), (392, 206395), (490, 165116), (686, 117940), (980, 82558), (1372, 58970), (1715, 47176), (1960, 41279), (2744, 29485), (3430, 23588), (5897, 13720), (6860, 11794)]