31130260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 75116160

約数和(自身を除く): 43985900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 916, 971, 1145, 1603, 1942, 2290, 3206, 3884, 4580, 4855, 6412, 6797, 8015, 9710, 13594, 16030, 19420, 27188, 32060, 33985, 67970, 135940, 222359, 444718, 889436, 1111795, 1556513, 2223590, 3113026, 4447180, 6226052, 7782565, 15565130, 31130260]

約数ペア:

[(1, 31130260), (2, 15565130), (4, 7782565), (5, 6226052), (7, 4447180), (10, 3113026), (14, 2223590), (20, 1556513), (28, 1111795), (35, 889436), (70, 444718), (140, 222359), (229, 135940), (458, 67970), (916, 33985), (971, 32060), (1145, 27188), (1603, 19420), (1942, 16030), (2290, 13594), (3206, 9710), (3884, 8015), (4580, 6797), (4855, 6412)]