28797560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65449}}^1$

素因数の和:65471

約数の個数: 32

約数和(自身を含む): 70686000

約数和(自身を除く): 41888440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65449, 130898, 261796, 327245, 523592, 654490, 719939, 1308980, 1439878, 2617960, 2879756, 3599695, 5759512, 7199390, 14398780, 28797560]

約数ペア:

[(1, 28797560), (2, 14398780), (4, 7199390), (5, 5759512), (8, 3599695), (10, 2879756), (11, 2617960), (20, 1439878), (22, 1308980), (40, 719939), (44, 654490), (55, 523592), (88, 327245), (110, 261796), (220, 130898), (440, 65449)]