28639160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65089}}^1$

素因数の和:65111

約数の個数: 32

約数和(自身を含む): 70297200

約数和(自身を除く): 41658040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65089, 130178, 260356, 325445, 520712, 650890, 715979, 1301780, 1431958, 2603560, 2863916, 3579895, 5727832, 7159790, 14319580, 28639160]

約数ペア:

[(1, 28639160), (2, 14319580), (4, 7159790), (5, 5727832), (8, 3579895), (10, 2863916), (11, 2603560), (20, 1431958), (22, 1301780), (40, 715979), (44, 650890), (55, 520712), (88, 325445), (110, 260356), (220, 130178), (440, 65089)]