28863560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65599}}^1$

素因数の和:65621

約数の個数: 32

約数和(自身を含む): 70848000

約数和(自身を除く): 41984440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65599, 131198, 262396, 327995, 524792, 655990, 721589, 1311980, 1443178, 2623960, 2886356, 3607945, 5772712, 7215890, 14431780, 28863560]

約数ペア:

[(1, 28863560), (2, 14431780), (4, 7215890), (5, 5772712), (8, 3607945), (10, 2886356), (11, 2623960), (20, 1443178), (22, 1311980), (40, 721589), (44, 655990), (55, 524792), (88, 327995), (110, 262396), (220, 131198), (440, 65599)]