648207365

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{149}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 928972800

約数和(自身を除く): 280765435

約数列:

[1, 5, 13, 17, 31, 65, 85, 127, 149, 155, 221, 403, 527, 635, 745, 1105, 1651, 1937, 2015, 2159, 2533, 2635, 3937, 4619, 6851, 8255, 9685, 10795, 12665, 18923, 19685, 23095, 28067, 32929, 34255, 51181, 60047, 66929, 78523, 94615, 140335, 164645, 245999, 255905, 300235, 321691, 334645, 392615, 586613, 870077, 1020799, 1229995, 1608455, 2933065, 4181983, 4350385, 5103995, 7625969, 9972421, 20909915, 38129845, 49862105, 129641473, 648207365]

約数ペア:

[(1, 648207365), (5, 129641473), (13, 49862105), (17, 38129845), (31, 20909915), (65, 9972421), (85, 7625969), (127, 5103995), (149, 4350385), (155, 4181983), (221, 2933065), (403, 1608455), (527, 1229995), (635, 1020799), (745, 870077), (1105, 586613), (1651, 392615), (1937, 334645), (2015, 321691), (2159, 300235), (2533, 255905), (2635, 245999), (3937, 164645), (4619, 140335), (6851, 94615), (8255, 78523), (9685, 66929), (10795, 60047), (12665, 51181), (18923, 34255), (19685, 32929), (23095, 28067)]