18440620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{769}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 42688800

約数和(自身を除く): 24248180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 109, 110, 218, 220, 436, 545, 769, 1090, 1199, 1538, 2180, 2398, 3076, 3845, 4796, 5995, 7690, 8459, 11990, 15380, 16918, 23980, 33836, 42295, 83821, 84590, 167642, 169180, 335284, 419105, 838210, 922031, 1676420, 1844062, 3688124, 4610155, 9220310, 18440620]

約数ペア:

[(1, 18440620), (2, 9220310), (4, 4610155), (5, 3688124), (10, 1844062), (11, 1676420), (20, 922031), (22, 838210), (44, 419105), (55, 335284), (109, 169180), (110, 167642), (218, 84590), (220, 83821), (436, 42295), (545, 33836), (769, 23980), (1090, 16918), (1199, 15380), (1538, 11990), (2180, 8459), (2398, 7690), (3076, 5995), (3845, 4796)]