28655440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32563}}^1$

素因数の和:32587

約数の個数: 40

約数和(自身を含む): 72682848

約数和(自身を除く): 44027408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 32563, 65126, 130252, 162815, 260504, 325630, 358193, 521008, 651260, 716386, 1302520, 1432772, 1790965, 2605040, 2865544, 3581930, 5731088, 7163860, 14327720, 28655440]

約数ペア:

[(1, 28655440), (2, 14327720), (4, 7163860), (5, 5731088), (8, 3581930), (10, 2865544), (11, 2605040), (16, 1790965), (20, 1432772), (22, 1302520), (40, 716386), (44, 651260), (55, 521008), (80, 358193), (88, 325630), (110, 260504), (176, 162815), (220, 130252), (440, 65126), (880, 32563)]