18493640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{3821}}^1$

素因数の和:3854

約数の個数: 48

約数和(自身を含む): 45749340

約数和(自身を除く): 27255700

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 968, 1210, 2420, 3821, 4840, 7642, 15284, 19105, 30568, 38210, 42031, 76420, 84062, 152840, 168124, 210155, 336248, 420310, 462341, 840620, 924682, 1681240, 1849364, 2311705, 3698728, 4623410, 9246820, 18493640]

約数ペア:

[(1, 18493640), (2, 9246820), (4, 4623410), (5, 3698728), (8, 2311705), (10, 1849364), (11, 1681240), (20, 924682), (22, 840620), (40, 462341), (44, 420310), (55, 336248), (88, 210155), (110, 168124), (121, 152840), (220, 84062), (242, 76420), (440, 42031), (484, 38210), (605, 30568), (968, 19105), (1210, 15284), (2420, 7642), (3821, 4840)]