20943340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4139}}^1$

素因数の和:4182

約数の個数: 48

約数和(自身を含む): 50077440

約数和(自身を除く): 29134100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 4139, 5060, 8278, 16556, 20695, 41390, 45529, 82780, 91058, 95197, 182116, 190394, 227645, 380788, 455290, 475985, 910580, 951970, 1047167, 1903940, 2094334, 4188668, 5235835, 10471670, 20943340]

約数ペア:

[(1, 20943340), (2, 10471670), (4, 5235835), (5, 4188668), (10, 2094334), (11, 1903940), (20, 1047167), (22, 951970), (23, 910580), (44, 475985), (46, 455290), (55, 380788), (92, 227645), (110, 190394), (115, 182116), (220, 95197), (230, 91058), (253, 82780), (460, 45529), (506, 41390), (1012, 20695), (1265, 16556), (2530, 8278), (4139, 5060)]