40129280

素因数分解:

$2^8\times 5^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 97351632

約数和(自身を除く): 57222352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 256, 293, 320, 428, 535, 586, 640, 856, 1070, 1172, 1280, 1465, 1712, 2140, 2344, 2930, 3424, 4280, 4688, 5860, 6848, 8560, 9376, 11720, 13696, 17120, 18752, 23440, 27392, 31351, 34240, 37504, 46880, 62702, 68480, 75008, 93760, 125404, 136960, 156755, 187520, 250808, 313510, 375040, 501616, 627020, 1003232, 1254040, 2006464, 2508080, 4012928, 5016160, 8025856, 10032320, 20064640, 40129280]

約数ペア:

[(1, 40129280), (2, 20064640), (4, 10032320), (5, 8025856), (8, 5016160), (10, 4012928), (16, 2508080), (20, 2006464), (32, 1254040), (40, 1003232), (64, 627020), (80, 501616), (107, 375040), (128, 313510), (160, 250808), (214, 187520), (256, 156755), (293, 136960), (320, 125404), (428, 93760), (535, 75008), (586, 68480), (640, 62702), (856, 46880), (1070, 37504), (1172, 34240), (1280, 31351), (1465, 27392), (1712, 23440), (2140, 18752), (2344, 17120), (2930, 13696), (3424, 11720), (4280, 9376), (4688, 8560), (5860, 6848)]