28992340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{111509}}^1$

素因数の和:111531

約数の個数: 24

約数和(自身を含む): 65567880

約数和(自身を除く): 36575540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 111509, 223018, 446036, 557545, 1115090, 1449617, 2230180, 2899234, 5798468, 7248085, 14496170, 28992340]

約数ペア:

[(1, 28992340), (2, 14496170), (4, 7248085), (5, 5798468), (10, 2899234), (13, 2230180), (20, 1449617), (26, 1115090), (52, 557545), (65, 446036), (130, 223018), (260, 111509)]