20877560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2063}}^1$

素因数の和:2108

約数の個数: 64

約数和(自身を含む): 53498880

約数和(自身を除く): 32621320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2063, 2530, 4126, 5060, 8252, 10120, 10315, 16504, 20630, 22693, 41260, 45386, 47449, 82520, 90772, 94898, 113465, 181544, 189796, 226930, 237245, 379592, 453860, 474490, 521939, 907720, 948980, 1043878, 1897960, 2087756, 2609695, 4175512, 5219390, 10438780, 20877560]

約数ペア:

[(1, 20877560), (2, 10438780), (4, 5219390), (5, 4175512), (8, 2609695), (10, 2087756), (11, 1897960), (20, 1043878), (22, 948980), (23, 907720), (40, 521939), (44, 474490), (46, 453860), (55, 379592), (88, 237245), (92, 226930), (110, 189796), (115, 181544), (184, 113465), (220, 94898), (230, 90772), (253, 82520), (440, 47449), (460, 45386), (506, 41260), (920, 22693), (1012, 20630), (1265, 16504), (2024, 10315), (2063, 10120), (2530, 8252), (4126, 5060)]