78507020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{991}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 175488768

約数和(自身を除く): 96981748

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 233, 340, 466, 932, 991, 1165, 1982, 2330, 3961, 3964, 4660, 4955, 7922, 9910, 15844, 16847, 19805, 19820, 33694, 39610, 67388, 79220, 84235, 168470, 230903, 336940, 461806, 923612, 1154515, 2309030, 3925351, 4618060, 7850702, 15701404, 19626755, 39253510, 78507020]

約数ペア:

[(1, 78507020), (2, 39253510), (4, 19626755), (5, 15701404), (10, 7850702), (17, 4618060), (20, 3925351), (34, 2309030), (68, 1154515), (85, 923612), (170, 461806), (233, 336940), (340, 230903), (466, 168470), (932, 84235), (991, 79220), (1165, 67388), (1982, 39610), (2330, 33694), (3961, 19820), (3964, 19805), (4660, 16847), (4955, 15844), (7922, 9910)]