20215809328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{87481}}^1$

素因数の和:87614

約数の個数: 80

約数和(自身を含む): 46471838112

約数和(自身を除く): 26256028784

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 101, 104, 143, 176, 202, 208, 286, 404, 572, 808, 1111, 1144, 1313, 1616, 2222, 2288, 2626, 4444, 5252, 8888, 10504, 14443, 17776, 21008, 28886, 57772, 87481, 115544, 174962, 231088, 349924, 699848, 962291, 1137253, 1399696, 1924582, 2274506, 3849164, 4549012, 7698328, 8835581, 9098024, 12509783, 15396656, 17671162, 18196048, 25019566, 35342324, 50039132, 70684648, 97191391, 100078264, 114862553, 141369296, 194382782, 200156528, 229725106, 388765564, 459450212, 777531128, 918900424, 1263488083, 1555062256, 1837800848, 2526976166, 5053952332, 10107904664, 20215809328]

約数ペア:

[(1, 20215809328), (2, 10107904664), (4, 5053952332), (8, 2526976166), (11, 1837800848), (13, 1555062256), (16, 1263488083), (22, 918900424), (26, 777531128), (44, 459450212), (52, 388765564), (88, 229725106), (101, 200156528), (104, 194382782), (143, 141369296), (176, 114862553), (202, 100078264), (208, 97191391), (286, 70684648), (404, 50039132), (572, 35342324), (808, 25019566), (1111, 18196048), (1144, 17671162), (1313, 15396656), (1616, 12509783), (2222, 9098024), (2288, 8835581), (2626, 7698328), (4444, 4549012), (5252, 3849164), (8888, 2274506), (10504, 1924582), (14443, 1399696), (17776, 1137253), (21008, 962291), (28886, 699848), (57772, 349924), (87481, 231088), (115544, 174962)]