20194725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 36211968

約数和(自身を除く): 16017243

約数列:

[1, 3, 5, 15, 17, 25, 47, 51, 75, 85, 141, 235, 255, 337, 425, 705, 799, 1011, 1175, 1275, 1685, 2397, 3525, 3995, 5055, 5729, 8425, 11985, 15839, 17187, 19975, 25275, 28645, 47517, 59925, 79195, 85935, 143225, 237585, 269263, 395975, 429675, 807789, 1187925, 1346315, 4038945, 6731575, 20194725]

約数ペア:

[(1, 20194725), (3, 6731575), (5, 4038945), (15, 1346315), (17, 1187925), (25, 807789), (47, 429675), (51, 395975), (75, 269263), (85, 237585), (141, 143225), (235, 85935), (255, 79195), (337, 59925), (425, 47517), (705, 28645), (799, 25275), (1011, 19975), (1175, 17187), (1275, 15839), (1685, 11985), (2397, 8425), (3525, 5729), (3995, 5055)]