18156784

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{359}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 36828000

約数和(自身を除く): 18671216

約数列:

[1, 2, 4, 8, 16, 29, 58, 109, 116, 218, 232, 359, 436, 464, 718, 872, 1436, 1744, 2872, 3161, 5744, 6322, 10411, 12644, 20822, 25288, 39131, 41644, 50576, 78262, 83288, 156524, 166576, 313048, 626096, 1134799, 2269598, 4539196, 9078392, 18156784]

約数ペア:

[(1, 18156784), (2, 9078392), (4, 4539196), (8, 2269598), (16, 1134799), (29, 626096), (58, 313048), (109, 166576), (116, 156524), (218, 83288), (232, 78262), (359, 50576), (436, 41644), (464, 39131), (718, 25288), (872, 20822), (1436, 12644), (1744, 10411), (2872, 6322), (3161, 5744)]