40490372

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{89}}^1\times {\mathrm{673}}^1$

素因数の和:792

約数の個数: 36

約数和(自身を含む): 77705460

約数和(自身を除く): 37215088

約数列:

[1, 2, 4, 13, 26, 52, 89, 169, 178, 338, 356, 673, 676, 1157, 1346, 2314, 2692, 4628, 8749, 15041, 17498, 30082, 34996, 59897, 60164, 113737, 119794, 227474, 239588, 454948, 778661, 1557322, 3114644, 10122593, 20245186, 40490372]

約数ペア:

[(1, 40490372), (2, 20245186), (4, 10122593), (13, 3114644), (26, 1557322), (52, 778661), (89, 454948), (169, 239588), (178, 227474), (338, 119794), (356, 113737), (673, 60164), (676, 59897), (1157, 34996), (1346, 30082), (2314, 17498), (2692, 15041), (4628, 8749)]