19195975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 36

約数和(自身を含む): 26596512

約数和(自身を除く): 7400537

約数列:

[1, 5, 17, 25, 31, 47, 85, 155, 235, 425, 527, 775, 799, 961, 1175, 1457, 2635, 3995, 4805, 7285, 13175, 16337, 19975, 24025, 24769, 36425, 45167, 81685, 123845, 225835, 408425, 619225, 767839, 1129175, 3839195, 19195975]

約数ペア:

[(1, 19195975), (5, 3839195), (17, 1129175), (25, 767839), (31, 619225), (47, 408425), (85, 225835), (155, 123845), (235, 81685), (425, 45167), (527, 36425), (775, 24769), (799, 24025), (961, 19975), (1175, 16337), (1457, 13175), (2635, 7285), (3995, 4805)]