20810768

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:192

約数の個数: 80

約数和(自身を含む): 47246976

約数和(自身を除く): 26436208

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 53, 88, 92, 97, 106, 176, 184, 194, 212, 253, 368, 388, 424, 506, 583, 776, 848, 1012, 1067, 1166, 1219, 1552, 2024, 2134, 2231, 2332, 2438, 4048, 4268, 4462, 4664, 4876, 5141, 8536, 8924, 9328, 9752, 10282, 13409, 17072, 17848, 19504, 20564, 24541, 26818, 35696, 41128, 49082, 53636, 56551, 82256, 98164, 107272, 113102, 118243, 196328, 214544, 226204, 236486, 392656, 452408, 472972, 904816, 945944, 1300673, 1891888, 2601346, 5202692, 10405384, 20810768]

約数ペア:

[(1, 20810768), (2, 10405384), (4, 5202692), (8, 2601346), (11, 1891888), (16, 1300673), (22, 945944), (23, 904816), (44, 472972), (46, 452408), (53, 392656), (88, 236486), (92, 226204), (97, 214544), (106, 196328), (176, 118243), (184, 113102), (194, 107272), (212, 98164), (253, 82256), (368, 56551), (388, 53636), (424, 49082), (506, 41128), (583, 35696), (776, 26818), (848, 24541), (1012, 20564), (1067, 19504), (1166, 17848), (1219, 17072), (1552, 13409), (2024, 10282), (2134, 9752), (2231, 9328), (2332, 8924), (2438, 8536), (4048, 5141), (4268, 4876), (4462, 4664)]