20549440

素因数分解:

$2^6\times 5^1\times {\mathrm{64217}}^1$

素因数の和:64234

約数の個数: 28

約数和(自身を含む): 48934116

約数和(自身を除く): 28384676

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64217, 128434, 256868, 321085, 513736, 642170, 1027472, 1284340, 2054944, 2568680, 4109888, 5137360, 10274720, 20549440]

約数ペア:

[(1, 20549440), (2, 10274720), (4, 5137360), (5, 4109888), (8, 2568680), (10, 2054944), (16, 1284340), (20, 1027472), (32, 642170), (40, 513736), (64, 321085), (80, 256868), (160, 128434), (320, 64217)]