28204160

素因数分解:

$2^7\times 5^1\times {\mathrm{127}}^1\times {\mathrm{347}}^1$

素因数の和:493

約数の個数: 64

約数和(自身を含む): 68152320

約数和(自身を除く): 39948160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 320, 347, 508, 635, 640, 694, 1016, 1270, 1388, 1735, 2032, 2540, 2776, 3470, 4064, 5080, 5552, 6940, 8128, 10160, 11104, 13880, 16256, 20320, 22208, 27760, 40640, 44069, 44416, 55520, 81280, 88138, 111040, 176276, 220345, 222080, 352552, 440690, 705104, 881380, 1410208, 1762760, 2820416, 3525520, 5640832, 7051040, 14102080, 28204160]

約数ペア:

[(1, 28204160), (2, 14102080), (4, 7051040), (5, 5640832), (8, 3525520), (10, 2820416), (16, 1762760), (20, 1410208), (32, 881380), (40, 705104), (64, 440690), (80, 352552), (127, 222080), (128, 220345), (160, 176276), (254, 111040), (320, 88138), (347, 81280), (508, 55520), (635, 44416), (640, 44069), (694, 40640), (1016, 27760), (1270, 22208), (1388, 20320), (1735, 16256), (2032, 13880), (2540, 11104), (2776, 10160), (3470, 8128), (4064, 6940), (5080, 5552)]