5641240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{12821}}^1$

素因数の和:12843

約数の個数: 32

約数和(自身を含む): 13847760

約数和(自身を除く): 8206520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 12821, 25642, 51284, 64105, 102568, 128210, 141031, 256420, 282062, 512840, 564124, 705155, 1128248, 1410310, 2820620, 5641240]

約数ペア:

[(1, 5641240), (2, 2820620), (4, 1410310), (5, 1128248), (8, 705155), (10, 564124), (11, 512840), (20, 282062), (22, 256420), (40, 141031), (44, 128210), (55, 102568), (88, 64105), (110, 51284), (220, 25642), (440, 12821)]