31478915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{359}}^1$

素因数の和:467

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 12066685

約数列:

[1, 5, 13, 19, 65, 71, 95, 247, 355, 359, 923, 1235, 1349, 1795, 4615, 4667, 6745, 6821, 17537, 23335, 25489, 34105, 87685, 88673, 127445, 331357, 443365, 484291, 1656785, 2421455, 6295783, 31478915]

約数ペア:

[(1, 31478915), (5, 6295783), (13, 2421455), (19, 1656785), (65, 484291), (71, 443365), (95, 331357), (247, 127445), (355, 88673), (359, 87685), (923, 34105), (1235, 25489), (1349, 23335), (1795, 17537), (4615, 6821), (4667, 6745)]