1286440

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1109}}^1$

素因数の和:1149

約数の個数: 32

約数和(自身を含む): 2997000

約数和(自身を除く): 1710560

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1109, 1160, 2218, 4436, 5545, 8872, 11090, 22180, 32161, 44360, 64322, 128644, 160805, 257288, 321610, 643220, 1286440]

約数ペア:

[(1, 1286440), (2, 643220), (4, 321610), (5, 257288), (8, 160805), (10, 128644), (20, 64322), (29, 44360), (40, 32161), (58, 22180), (116, 11090), (145, 8872), (232, 5545), (290, 4436), (580, 2218), (1109, 1160)]