28065280

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{577}}^1$

素因数の和:619

約数の個数: 80

約数和(自身を含む): 70955280

約数和(自身を除く): 42890000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 577, 608, 640, 760, 1154, 1216, 1280, 1520, 2308, 2432, 2560, 2885, 3040, 4616, 4864, 5770, 6080, 9232, 9728, 10963, 11540, 12160, 18464, 21926, 23080, 24320, 36928, 43852, 46160, 48640, 54815, 73856, 87704, 92320, 109630, 147712, 175408, 184640, 219260, 295424, 350816, 369280, 438520, 701632, 738560, 877040, 1403264, 1477120, 1754080, 2806528, 3508160, 5613056, 7016320, 14032640, 28065280]

約数ペア:

[(1, 28065280), (2, 14032640), (4, 7016320), (5, 5613056), (8, 3508160), (10, 2806528), (16, 1754080), (19, 1477120), (20, 1403264), (32, 877040), (38, 738560), (40, 701632), (64, 438520), (76, 369280), (80, 350816), (95, 295424), (128, 219260), (152, 184640), (160, 175408), (190, 147712), (256, 109630), (304, 92320), (320, 87704), (380, 73856), (512, 54815), (577, 48640), (608, 46160), (640, 43852), (760, 36928), (1154, 24320), (1216, 23080), (1280, 21926), (1520, 18464), (2308, 12160), (2432, 11540), (2560, 10963), (2885, 9728), (3040, 9232), (4616, 6080), (4864, 5770)]