8320390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2207}}^1$

素因数の和:2256

約数の個数: 32

約数和(自身を含む): 16692480

約数和(自身を除く): 8372090

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 2207, 3770, 4414, 11035, 22070, 28691, 57382, 64003, 128006, 143455, 286910, 320015, 640030, 832039, 1664078, 4160195, 8320390]

約数ペア:

[(1, 8320390), (2, 4160195), (5, 1664078), (10, 832039), (13, 640030), (26, 320015), (29, 286910), (58, 143455), (65, 128006), (130, 64003), (145, 57382), (290, 28691), (377, 22070), (754, 11035), (1885, 4414), (2207, 3770)]