20493590

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8297}}^1$

素因数の和:8336

約数の個数: 32

約数和(自身を含む): 41821920

約数和(自身を除く): 21328330

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8297, 16594, 41485, 82970, 107861, 157643, 215722, 315286, 539305, 788215, 1078610, 1576430, 2049359, 4098718, 10246795, 20493590]

約数ペア:

[(1, 20493590), (2, 10246795), (5, 4098718), (10, 2049359), (13, 1576430), (19, 1078610), (26, 788215), (38, 539305), (65, 315286), (95, 215722), (130, 157643), (190, 107861), (247, 82970), (494, 41485), (1235, 16594), (2470, 8297)]