138936805

素因数分解:

$5^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{2543}}^1$

素因数の和:2785

約数の個数: 24

約数和(自身を含む): 194890752

約数和(自身を除く): 55953947

約数列:

[1, 5, 7, 35, 49, 223, 245, 1115, 1561, 2543, 7805, 10927, 12715, 17801, 54635, 89005, 124607, 567089, 623035, 2835445, 3969623, 19848115, 27787361, 138936805]

約数ペア:

[(1, 138936805), (5, 27787361), (7, 19848115), (35, 3969623), (49, 2835445), (223, 623035), (245, 567089), (1115, 124607), (1561, 89005), (2543, 54635), (7805, 17801), (10927, 12715)]