18880730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4639}}^1$

素因数の和:4694

約数の個数: 32

約数和(自身を含む): 38085120

約数和(自身を除く): 19204390

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 185, 370, 407, 814, 2035, 4070, 4639, 9278, 23195, 46390, 51029, 102058, 171643, 255145, 343286, 510290, 858215, 1716430, 1888073, 3776146, 9440365, 18880730]

約数ペア:

[(1, 18880730), (2, 9440365), (5, 3776146), (10, 1888073), (11, 1716430), (22, 858215), (37, 510290), (55, 343286), (74, 255145), (110, 171643), (185, 102058), (370, 51029), (407, 46390), (814, 23195), (2035, 9278), (4070, 4639)]