28071560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63799}}^1$

素因数の和:63821

約数の個数: 32

約数和(自身を含む): 68904000

約数和(自身を除く): 40832440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63799, 127598, 255196, 318995, 510392, 637990, 701789, 1275980, 1403578, 2551960, 2807156, 3508945, 5614312, 7017890, 14035780, 28071560]

約数ペア:

[(1, 28071560), (2, 14035780), (4, 7017890), (5, 5614312), (8, 3508945), (10, 2807156), (11, 2551960), (20, 1403578), (22, 1275980), (40, 701789), (44, 637990), (55, 510392), (88, 318995), (110, 255196), (220, 127598), (440, 63799)]