31017580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{140989}}^1$

素因数の和:141009

約数の個数: 24

約数和(自身を含む): 71058960

約数和(自身を除く): 40041380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 140989, 281978, 563956, 704945, 1409890, 1550879, 2819780, 3101758, 6203516, 7754395, 15508790, 31017580]

約数ペア:

[(1, 31017580), (2, 15508790), (4, 7754395), (5, 6203516), (10, 3101758), (11, 2819780), (20, 1550879), (22, 1409890), (44, 704945), (55, 563956), (110, 281978), (220, 140989)]