28606820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11821}}^1$

素因数の和:11852

約数の個数: 36

約数和(自身を含む): 66037692

約数和(自身を除く): 37430872

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 11821, 23642, 47284, 59105, 118210, 130031, 236420, 260062, 520124, 650155, 1300310, 1430341, 2600620, 2860682, 5721364, 7151705, 14303410, 28606820]

約数ペア:

[(1, 28606820), (2, 14303410), (4, 7151705), (5, 5721364), (10, 2860682), (11, 2600620), (20, 1430341), (22, 1300310), (44, 650155), (55, 520124), (110, 260062), (121, 236420), (220, 130031), (242, 118210), (484, 59105), (605, 47284), (1210, 23642), (2420, 11821)]