12808120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{24631}}^1$

素因数の和:24655

約数の個数: 32

約数和(自身を含む): 31036320

約数和(自身を除く): 18228200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 24631, 49262, 98524, 123155, 197048, 246310, 320203, 492620, 640406, 985240, 1280812, 1601015, 2561624, 3202030, 6404060, 12808120]

約数ペア:

[(1, 12808120), (2, 6404060), (4, 3202030), (5, 2561624), (8, 1601015), (10, 1280812), (13, 985240), (20, 640406), (26, 492620), (40, 320203), (52, 246310), (65, 197048), (104, 123155), (130, 98524), (260, 49262), (520, 24631)]