78723648040

素因数分解:

$2^3\times 5^1\times {\mathrm{13807}}^1\times {\mathrm{142543}}^1$

素因数の和:156361

約数の個数: 32

約数和(自身を含む): 177142279680

約数和(自身を除く): 98418631640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13807, 27614, 55228, 69035, 110456, 138070, 142543, 276140, 285086, 552280, 570172, 712715, 1140344, 1425430, 2850860, 5701720, 1968091201, 3936182402, 7872364804, 9840456005, 15744729608, 19680912010, 39361824020, 78723648040]

約数ペア:

[(1, 78723648040), (2, 39361824020), (4, 19680912010), (5, 15744729608), (8, 9840456005), (10, 7872364804), (20, 3936182402), (40, 1968091201), (13807, 5701720), (27614, 2850860), (55228, 1425430), (69035, 1140344), (110456, 712715), (138070, 570172), (142543, 552280), (276140, 285086)]