18201737710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{431}}^1\times {\mathrm{24989}}^1$

素因数の和:25453

約数の個数: 48

約数和(自身を含む): 35560969920

約数和(自身を除く): 17359232210

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 431, 845, 862, 1690, 2155, 4310, 5603, 11206, 24989, 28015, 49978, 56030, 72839, 124945, 145678, 249890, 324857, 364195, 649714, 728390, 1624285, 3248570, 4223141, 8446282, 10770259, 21115705, 21540518, 42231410, 53851295, 107702590, 140013367, 280026734, 700066835, 1400133670, 1820173771, 3640347542, 9100868855, 18201737710]

約数ペア:

[(1, 18201737710), (2, 9100868855), (5, 3640347542), (10, 1820173771), (13, 1400133670), (26, 700066835), (65, 280026734), (130, 140013367), (169, 107702590), (338, 53851295), (431, 42231410), (845, 21540518), (862, 21115705), (1690, 10770259), (2155, 8446282), (4310, 4223141), (5603, 3248570), (11206, 1624285), (24989, 728390), (28015, 649714), (49978, 364195), (56030, 324857), (72839, 249890), (124945, 145678)]