77016980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{523}}^1$

素因数の和:768

約数の個数: 48

約数和(自身を含む): 167260800

約数和(自身を除く): 90243820

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 199, 370, 398, 523, 740, 796, 995, 1046, 1990, 2092, 2615, 3980, 5230, 7363, 10460, 14726, 19351, 29452, 36815, 38702, 73630, 77404, 96755, 104077, 147260, 193510, 208154, 387020, 416308, 520385, 1040770, 2081540, 3850849, 7701698, 15403396, 19254245, 38508490, 77016980]

約数ペア:

[(1, 77016980), (2, 38508490), (4, 19254245), (5, 15403396), (10, 7701698), (20, 3850849), (37, 2081540), (74, 1040770), (148, 520385), (185, 416308), (199, 387020), (370, 208154), (398, 193510), (523, 147260), (740, 104077), (796, 96755), (995, 77404), (1046, 73630), (1990, 38702), (2092, 36815), (2615, 29452), (3980, 19351), (5230, 14726), (7363, 10460)]