22271920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{25309}}^1$

素因数の和:25333

約数の個数: 40

約数和(自身を含む): 56491920

約数和(自身を除く): 34220000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 25309, 50618, 101236, 126545, 202472, 253090, 278399, 404944, 506180, 556798, 1012360, 1113596, 1391995, 2024720, 2227192, 2783990, 4454384, 5567980, 11135960, 22271920]

約数ペア:

[(1, 22271920), (2, 11135960), (4, 5567980), (5, 4454384), (8, 2783990), (10, 2227192), (11, 2024720), (16, 1391995), (20, 1113596), (22, 1012360), (40, 556798), (44, 506180), (55, 404944), (80, 278399), (88, 253090), (110, 202472), (176, 126545), (220, 101236), (440, 50618), (880, 25309)]