28051760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 71995392

約数和(自身を除く): 43943632

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 127, 176, 220, 251, 254, 440, 502, 508, 635, 880, 1004, 1016, 1255, 1270, 1397, 2008, 2032, 2510, 2540, 2761, 2794, 4016, 5020, 5080, 5522, 5588, 6985, 10040, 10160, 11044, 11176, 13805, 13970, 20080, 22088, 22352, 27610, 27940, 31877, 44176, 55220, 55880, 63754, 110440, 111760, 127508, 159385, 220880, 255016, 318770, 350647, 510032, 637540, 701294, 1275080, 1402588, 1753235, 2550160, 2805176, 3506470, 5610352, 7012940, 14025880, 28051760]

約数ペア:

[(1, 28051760), (2, 14025880), (4, 7012940), (5, 5610352), (8, 3506470), (10, 2805176), (11, 2550160), (16, 1753235), (20, 1402588), (22, 1275080), (40, 701294), (44, 637540), (55, 510032), (80, 350647), (88, 318770), (110, 255016), (127, 220880), (176, 159385), (220, 127508), (251, 111760), (254, 110440), (440, 63754), (502, 55880), (508, 55220), (635, 44176), (880, 31877), (1004, 27940), (1016, 27610), (1255, 22352), (1270, 22088), (1397, 20080), (2008, 13970), (2032, 13805), (2510, 11176), (2540, 11044), (2761, 10160), (2794, 10040), (4016, 6985), (5020, 5588), (5080, 5522)]