68721575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 99993600

約数和(自身を除く): 31272025

約数列:

[1, 5, 13, 19, 25, 31, 65, 95, 155, 247, 325, 359, 403, 475, 589, 775, 1235, 1795, 2015, 2945, 4667, 6175, 6821, 7657, 8975, 10075, 11129, 14725, 23335, 34105, 38285, 55645, 88673, 116675, 144677, 170525, 191425, 211451, 278225, 443365, 723385, 1057255, 2216825, 2748863, 3616925, 5286275, 13744315, 68721575]

約数ペア:

[(1, 68721575), (5, 13744315), (13, 5286275), (19, 3616925), (25, 2748863), (31, 2216825), (65, 1057255), (95, 723385), (155, 443365), (247, 278225), (325, 211451), (359, 191425), (403, 170525), (475, 144677), (589, 116675), (775, 88673), (1235, 55645), (1795, 38285), (2015, 34105), (2945, 23335), (4667, 14725), (6175, 11129), (6821, 10075), (7657, 8975)]