28997120

素因数分解:

$2^9\times 5^1\times {\mathrm{47}}^1\times {\mathrm{241}}^1$

素因数の和:311

約数の個数: 80

約数和(自身を含む): 71299008

約数和(自身を除く): 42301888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 241, 256, 320, 376, 470, 482, 512, 640, 752, 940, 964, 1205, 1280, 1504, 1880, 1928, 2410, 2560, 3008, 3760, 3856, 4820, 6016, 7520, 7712, 9640, 11327, 12032, 15040, 15424, 19280, 22654, 24064, 30080, 30848, 38560, 45308, 56635, 60160, 61696, 77120, 90616, 113270, 120320, 123392, 154240, 181232, 226540, 308480, 362464, 453080, 616960, 724928, 906160, 1449856, 1812320, 2899712, 3624640, 5799424, 7249280, 14498560, 28997120]

約数ペア:

[(1, 28997120), (2, 14498560), (4, 7249280), (5, 5799424), (8, 3624640), (10, 2899712), (16, 1812320), (20, 1449856), (32, 906160), (40, 724928), (47, 616960), (64, 453080), (80, 362464), (94, 308480), (128, 226540), (160, 181232), (188, 154240), (235, 123392), (241, 120320), (256, 113270), (320, 90616), (376, 77120), (470, 61696), (482, 60160), (512, 56635), (640, 45308), (752, 38560), (940, 30848), (964, 30080), (1205, 24064), (1280, 22654), (1504, 19280), (1880, 15424), (1928, 15040), (2410, 12032), (2560, 11327), (3008, 9640), (3760, 7712), (3856, 7520), (4820, 6016)]