18108640

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10289}}^1$

素因数の和:10315

約数の個数: 48

約数和(自身を含む): 46675440

約数和(自身を除く): 28566800

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 10289, 20578, 41156, 51445, 82312, 102890, 113179, 164624, 205780, 226358, 329248, 411560, 452716, 565895, 823120, 905432, 1131790, 1646240, 1810864, 2263580, 3621728, 4527160, 9054320, 18108640]

約数ペア:

[(1, 18108640), (2, 9054320), (4, 4527160), (5, 3621728), (8, 2263580), (10, 1810864), (11, 1646240), (16, 1131790), (20, 905432), (22, 823120), (32, 565895), (40, 452716), (44, 411560), (55, 329248), (80, 226358), (88, 205780), (110, 164624), (160, 113179), (176, 102890), (220, 82312), (352, 51445), (440, 41156), (880, 20578), (1760, 10289)]