28199860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108461}}^1$

素因数の和:108483

約数の個数: 24

約数和(自身を含む): 63775656

約数和(自身を除く): 35575796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108461, 216922, 433844, 542305, 1084610, 1409993, 2169220, 2819986, 5639972, 7049965, 14099930, 28199860]

約数ペア:

[(1, 28199860), (2, 14099930), (4, 7049965), (5, 5639972), (10, 2819986), (13, 2169220), (20, 1409993), (26, 1084610), (52, 542305), (65, 433844), (130, 216922), (260, 108461)]