12737140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48989}}^1$

素因数の和:49011

約数の個数: 24

約数和(自身を含む): 28806120

約数和(自身を除く): 16068980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 48989, 97978, 195956, 244945, 489890, 636857, 979780, 1273714, 2547428, 3184285, 6368570, 12737140]

約数ペア:

[(1, 12737140), (2, 6368570), (4, 3184285), (5, 2547428), (10, 1273714), (13, 979780), (20, 636857), (26, 489890), (52, 244945), (65, 195956), (130, 97978), (260, 48989)]