18280640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{8161}}^1$

素因数の和:8185

約数の個数: 56

約数和(自身を含む): 49755552

約数和(自身を除く): 31474912

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 8161, 16322, 32644, 40805, 57127, 65288, 81610, 114254, 130576, 163220, 228508, 261152, 285635, 326440, 457016, 522304, 571270, 652880, 914032, 1142540, 1305760, 1828064, 2285080, 2611520, 3656128, 4570160, 9140320, 18280640]

約数ペア:

[(1, 18280640), (2, 9140320), (4, 4570160), (5, 3656128), (7, 2611520), (8, 2285080), (10, 1828064), (14, 1305760), (16, 1142540), (20, 914032), (28, 652880), (32, 571270), (35, 522304), (40, 457016), (56, 326440), (64, 285635), (70, 261152), (80, 228508), (112, 163220), (140, 130576), (160, 114254), (224, 81610), (280, 65288), (320, 57127), (448, 40805), (560, 32644), (1120, 16322), (2240, 8161)]