20722384

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1019}}^1$

素因数の和:1099

約数の個数: 40

約数和(自身を含む): 42497280

約数和(自身を除く): 21774896

約数列:

[1, 2, 4, 8, 16, 31, 41, 62, 82, 124, 164, 248, 328, 496, 656, 1019, 1271, 2038, 2542, 4076, 5084, 8152, 10168, 16304, 20336, 31589, 41779, 63178, 83558, 126356, 167116, 252712, 334232, 505424, 668464, 1295149, 2590298, 5180596, 10361192, 20722384]

約数ペア:

[(1, 20722384), (2, 10361192), (4, 5180596), (8, 2590298), (16, 1295149), (31, 668464), (41, 505424), (62, 334232), (82, 252712), (124, 167116), (164, 126356), (248, 83558), (328, 63178), (496, 41779), (656, 31589), (1019, 20336), (1271, 16304), (2038, 10168), (2542, 8152), (4076, 5084)]