7947280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{821}}^1$

素因数の和:856

約数の個数: 60

約数和(自身を含む): 20334636

約数和(自身を除く): 12387356

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 821, 880, 968, 1210, 1642, 1936, 2420, 3284, 4105, 4840, 6568, 8210, 9031, 9680, 13136, 16420, 18062, 32840, 36124, 45155, 65680, 72248, 90310, 99341, 144496, 180620, 198682, 361240, 397364, 496705, 722480, 794728, 993410, 1589456, 1986820, 3973640, 7947280]

約数ペア:

[(1, 7947280), (2, 3973640), (4, 1986820), (5, 1589456), (8, 993410), (10, 794728), (11, 722480), (16, 496705), (20, 397364), (22, 361240), (40, 198682), (44, 180620), (55, 144496), (80, 99341), (88, 90310), (110, 72248), (121, 65680), (176, 45155), (220, 36124), (242, 32840), (440, 18062), (484, 16420), (605, 13136), (821, 9680), (880, 9031), (968, 8210), (1210, 6568), (1642, 4840), (1936, 4105), (2420, 3284)]