20466688

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 88

約数和(自身を含む): 47162880

約数和(自身を除く): 26696192

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 79, 88, 92, 128, 158, 176, 184, 253, 256, 316, 352, 368, 506, 512, 632, 704, 736, 869, 1012, 1024, 1264, 1408, 1472, 1738, 1817, 2024, 2528, 2816, 2944, 3476, 3634, 4048, 5056, 5632, 5888, 6952, 7268, 8096, 10112, 11264, 11776, 13904, 14536, 16192, 19987, 20224, 23552, 27808, 29072, 32384, 39974, 40448, 55616, 58144, 64768, 79948, 80896, 111232, 116288, 129536, 159896, 222464, 232576, 259072, 319792, 444928, 465152, 639584, 889856, 930304, 1279168, 1860608, 2558336, 5116672, 10233344, 20466688]

約数ペア:

[(1, 20466688), (2, 10233344), (4, 5116672), (8, 2558336), (11, 1860608), (16, 1279168), (22, 930304), (23, 889856), (32, 639584), (44, 465152), (46, 444928), (64, 319792), (79, 259072), (88, 232576), (92, 222464), (128, 159896), (158, 129536), (176, 116288), (184, 111232), (253, 80896), (256, 79948), (316, 64768), (352, 58144), (368, 55616), (506, 40448), (512, 39974), (632, 32384), (704, 29072), (736, 27808), (869, 23552), (1012, 20224), (1024, 19987), (1264, 16192), (1408, 14536), (1472, 13904), (1738, 11776), (1817, 11264), (2024, 10112), (2528, 8096), (2816, 7268), (2944, 6952), (3476, 5888), (3634, 5632), (4048, 5056)]