31237720

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{6911}}^1$

素因数の和:7035

約数の個数: 32

約数和(自身を含む): 70917120

約数和(自身を除く): 39679400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 6911, 13822, 27644, 34555, 55288, 69110, 138220, 276440, 780943, 1561886, 3123772, 3904715, 6247544, 7809430, 15618860, 31237720]

約数ペア:

[(1, 31237720), (2, 15618860), (4, 7809430), (5, 6247544), (8, 3904715), (10, 3123772), (20, 1561886), (40, 780943), (113, 276440), (226, 138220), (452, 69110), (565, 55288), (904, 34555), (1130, 27644), (2260, 13822), (4520, 6911)]