18005504

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 23241856

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 128, 139, 176, 184, 253, 256, 278, 352, 368, 506, 512, 556, 704, 736, 1012, 1112, 1408, 1472, 1529, 2024, 2224, 2816, 2944, 3058, 3197, 4048, 4448, 5632, 5888, 6116, 6394, 8096, 8896, 11776, 12232, 12788, 16192, 17792, 24464, 25576, 32384, 35167, 35584, 48928, 51152, 64768, 70334, 71168, 97856, 102304, 129536, 140668, 195712, 204608, 281336, 391424, 409216, 562672, 782848, 818432, 1125344, 1636864, 2250688, 4501376, 9002752, 18005504]

約数ペア:

[(1, 18005504), (2, 9002752), (4, 4501376), (8, 2250688), (11, 1636864), (16, 1125344), (22, 818432), (23, 782848), (32, 562672), (44, 409216), (46, 391424), (64, 281336), (88, 204608), (92, 195712), (128, 140668), (139, 129536), (176, 102304), (184, 97856), (253, 71168), (256, 70334), (278, 64768), (352, 51152), (368, 48928), (506, 35584), (512, 35167), (556, 32384), (704, 25576), (736, 24464), (1012, 17792), (1112, 16192), (1408, 12788), (1472, 12232), (1529, 11776), (2024, 8896), (2224, 8096), (2816, 6394), (2944, 6116), (3058, 5888), (3197, 5632), (4048, 4448)]