128461280

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42257}}^1$

素因数の和:42291

約数の個数: 48

約数和(自身を含む): 319470480

約数和(自身を除く): 191009200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 42257, 84514, 169028, 211285, 338056, 422570, 676112, 802883, 845140, 1352224, 1605766, 1690280, 3211532, 3380560, 4014415, 6423064, 6761120, 8028830, 12846128, 16057660, 25692256, 32115320, 64230640, 128461280]

約数ペア:

[(1, 128461280), (2, 64230640), (4, 32115320), (5, 25692256), (8, 16057660), (10, 12846128), (16, 8028830), (19, 6761120), (20, 6423064), (32, 4014415), (38, 3380560), (40, 3211532), (76, 1690280), (80, 1605766), (95, 1352224), (152, 845140), (160, 802883), (190, 676112), (304, 422570), (380, 338056), (608, 211285), (760, 169028), (1520, 84514), (3040, 42257)]