222400540

素因数分解:

$2^2\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{5189}}^1$

素因数の和:7341

約数の個数: 24

約数和(自身を含む): 467349120

約数和(自身を除く): 244948580

約数列:

[1, 2, 4, 5, 10, 20, 2143, 4286, 5189, 8572, 10378, 10715, 20756, 21430, 25945, 42860, 51890, 103780, 11120027, 22240054, 44480108, 55600135, 111200270, 222400540]

約数ペア:

[(1, 222400540), (2, 111200270), (4, 55600135), (5, 44480108), (10, 22240054), (20, 11120027), (2143, 103780), (4286, 51890), (5189, 42860), (8572, 25945), (10378, 21430), (10715, 20756)]