20202644

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:189

約数の個数: 72

約数和(自身を含む): 45581760

約数和(自身を除く): 25379116

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 67, 77, 89, 121, 134, 154, 178, 242, 268, 308, 356, 469, 484, 623, 737, 847, 938, 979, 1246, 1474, 1694, 1876, 1958, 2492, 2948, 3388, 3916, 5159, 5963, 6853, 8107, 10318, 10769, 11926, 13706, 16214, 20636, 21538, 23852, 27412, 32428, 41741, 43076, 56749, 65593, 75383, 83482, 113498, 131186, 150766, 166964, 226996, 262372, 301532, 459151, 721523, 918302, 1443046, 1836604, 2886092, 5050661, 10101322, 20202644]

約数ペア:

[(1, 20202644), (2, 10101322), (4, 5050661), (7, 2886092), (11, 1836604), (14, 1443046), (22, 918302), (28, 721523), (44, 459151), (67, 301532), (77, 262372), (89, 226996), (121, 166964), (134, 150766), (154, 131186), (178, 113498), (242, 83482), (268, 75383), (308, 65593), (356, 56749), (469, 43076), (484, 41741), (623, 32428), (737, 27412), (847, 23852), (938, 21538), (979, 20636), (1246, 16214), (1474, 13706), (1694, 11926), (1876, 10769), (1958, 10318), (2492, 8107), (2948, 6853), (3388, 5963), (3916, 5159)]