128528140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21493}}^1$

素因数の和:21538

約数の個数: 48

約数和(自身を含む): 303323328

約数和(自身を除く): 174795188

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 5980, 21493, 42986, 85972, 107465, 214930, 279409, 429860, 494339, 558818, 988678, 1117636, 1397045, 1977356, 2471695, 2794090, 4943390, 5588180, 6426407, 9886780, 12852814, 25705628, 32132035, 64264070, 128528140]

約数ペア:

[(1, 128528140), (2, 64264070), (4, 32132035), (5, 25705628), (10, 12852814), (13, 9886780), (20, 6426407), (23, 5588180), (26, 4943390), (46, 2794090), (52, 2471695), (65, 1977356), (92, 1397045), (115, 1117636), (130, 988678), (230, 558818), (260, 494339), (299, 429860), (460, 279409), (598, 214930), (1196, 107465), (1495, 85972), (2990, 42986), (5980, 21493)]