127979825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 176774400

約数和(自身を除く): 48794575

約数列:

[1, 5, 17, 25, 43, 47, 85, 149, 215, 235, 425, 731, 745, 799, 1075, 1175, 2021, 2533, 3655, 3725, 3995, 6407, 7003, 10105, 12665, 18275, 19975, 32035, 34357, 35015, 50525, 63325, 108919, 119051, 160175, 171785, 175075, 301129, 544595, 595255, 858925, 1505645, 2722975, 2976275, 5119193, 7528225, 25595965, 127979825]

約数ペア:

[(1, 127979825), (5, 25595965), (17, 7528225), (25, 5119193), (43, 2976275), (47, 2722975), (85, 1505645), (149, 858925), (215, 595255), (235, 544595), (425, 301129), (731, 175075), (745, 171785), (799, 160175), (1075, 119051), (1175, 108919), (2021, 63325), (2533, 50525), (3655, 35015), (3725, 34357), (3995, 32035), (6407, 19975), (7003, 18275), (10105, 12665)]