2205980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2251}}^1$

素因数の和:2274

約数の個数: 36

約数和(自身を含む): 5391288

約数和(自身を除く): 3185308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2251, 4502, 9004, 11255, 15757, 22510, 31514, 45020, 63028, 78785, 110299, 157570, 220598, 315140, 441196, 551495, 1102990, 2205980]

約数ペア:

[(1, 2205980), (2, 1102990), (4, 551495), (5, 441196), (7, 315140), (10, 220598), (14, 157570), (20, 110299), (28, 78785), (35, 63028), (49, 45020), (70, 31514), (98, 22510), (140, 15757), (196, 11255), (245, 9004), (490, 4502), (980, 2251)]