2149220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2621}}^1$

素因数の和:2671

約数の個数: 24

約数和(自身を含む): 4625208

約数和(自身を除く): 2475988

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2621, 5242, 10484, 13105, 26210, 52420, 107461, 214922, 429844, 537305, 1074610, 2149220]

約数ペア:

[(1, 2149220), (2, 1074610), (4, 537305), (5, 429844), (10, 214922), (20, 107461), (41, 52420), (82, 26210), (164, 13105), (205, 10484), (410, 5242), (820, 2621)]