13397725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 18866848

約数和(自身を除く): 5469123

約数列:

[1, 5, 11, 25, 43, 55, 103, 121, 215, 275, 473, 515, 605, 1075, 1133, 2365, 2575, 3025, 4429, 5203, 5665, 11825, 12463, 22145, 26015, 28325, 48719, 62315, 110725, 130075, 243595, 311575, 535909, 1217975, 2679545, 13397725]

約数ペア:

[(1, 13397725), (5, 2679545), (11, 1217975), (25, 535909), (43, 311575), (55, 243595), (103, 130075), (121, 110725), (215, 62315), (275, 48719), (473, 28325), (515, 26015), (605, 22145), (1075, 12463), (1133, 11825), (2365, 5665), (2575, 5203), (3025, 4429)]