20647510635

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1\times {\mathrm{39953}}^1$

素因数の和:40355

約数の個数: 32

約数和(自身を含む): 33415607808

約数和(自身を除く): 12768097173

約数列:

[1, 3, 5, 15, 131, 263, 393, 655, 789, 1315, 1965, 3945, 34453, 39953, 103359, 119859, 172265, 199765, 516795, 599295, 5233843, 10507639, 15701529, 26169215, 31522917, 52538195, 78507645, 157614585, 1376500709, 4129502127, 6882503545, 20647510635]

約数ペア:

[(1, 20647510635), (3, 6882503545), (5, 4129502127), (15, 1376500709), (131, 157614585), (263, 78507645), (393, 52538195), (655, 31522917), (789, 26169215), (1315, 15701529), (1965, 10507639), (3945, 5233843), (34453, 599295), (39953, 516795), (103359, 199765), (119859, 172265)]