28121665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 40755456

約数和(自身を除く): 12633791

約数列:

[1, 5, 11, 13, 37, 55, 65, 143, 185, 407, 481, 715, 1063, 2035, 2405, 5291, 5315, 11693, 13819, 26455, 39331, 58465, 69095, 152009, 196655, 432641, 511303, 760045, 2163205, 2556515, 5624333, 28121665]

約数ペア:

[(1, 28121665), (5, 5624333), (11, 2556515), (13, 2163205), (37, 760045), (55, 511303), (65, 432641), (143, 196655), (185, 152009), (407, 69095), (481, 58465), (715, 39331), (1063, 26455), (2035, 13819), (2405, 11693), (5291, 5315)]