20219576

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 23326024

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 79, 92, 104, 107, 158, 184, 214, 299, 316, 428, 598, 632, 856, 1027, 1196, 1391, 1817, 2054, 2392, 2461, 2782, 3634, 4108, 4922, 5564, 7268, 8216, 8453, 9844, 11128, 14536, 16906, 19688, 23621, 31993, 33812, 47242, 63986, 67624, 94484, 109889, 127972, 188968, 194419, 219778, 255944, 388838, 439556, 777676, 879112, 1555352, 2527447, 5054894, 10109788, 20219576]

約数ペア:

[(1, 20219576), (2, 10109788), (4, 5054894), (8, 2527447), (13, 1555352), (23, 879112), (26, 777676), (46, 439556), (52, 388838), (79, 255944), (92, 219778), (104, 194419), (107, 188968), (158, 127972), (184, 109889), (214, 94484), (299, 67624), (316, 63986), (428, 47242), (598, 33812), (632, 31993), (856, 23621), (1027, 19688), (1196, 16906), (1391, 14536), (1817, 11128), (2054, 9844), (2392, 8453), (2461, 8216), (2782, 7268), (3634, 5564), (4108, 4922)]