21626440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2137}}^1$

素因数の和:2182

約数の個数: 64

約数和(自身を含む): 55416960

約数和(自身を除く): 33790520

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, 2137, 2530, 4274, 5060, 8548, 10120, 10685, 17096, 21370, 23507, 42740, 47014, 49151, 85480, 94028, 98302, 117535, 188056, 196604, 235070, 245755, 393208, 470140, 491510, 540661, 940280, 983020, 1081322, 1966040, 2162644, 2703305, 4325288, 5406610, 10813220, 21626440]

約数ペア:

[(1, 21626440), (2, 10813220), (4, 5406610), (5, 4325288), (8, 2703305), (10, 2162644), (11, 1966040), (20, 1081322), (22, 983020), (23, 940280), (40, 540661), (44, 491510), (46, 470140), (55, 393208), (88, 245755), (92, 235070), (110, 196604), (115, 188056), (184, 117535), (220, 98302), (230, 94028), (253, 85480), (440, 49151), (460, 47014), (506, 42740), (920, 23507), (1012, 21370), (1265, 17096), (2024, 10685), (2137, 10120), (2530, 8548), (4274, 5060)]