206569990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{2161}}^1$

素因数の和:2269

約数の個数: 48

約数和(自身を含む): 414066240

約数和(自身を除く): 207496250

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 121, 158, 242, 395, 605, 790, 869, 1210, 1738, 2161, 4322, 4345, 8690, 9559, 10805, 19118, 21610, 23771, 47542, 47795, 95590, 118855, 170719, 237710, 261481, 341438, 522962, 853595, 1307405, 1707190, 1877909, 2614810, 3755818, 9389545, 18779090, 20656999, 41313998, 103284995, 206569990]

約数ペア:

[(1, 206569990), (2, 103284995), (5, 41313998), (10, 20656999), (11, 18779090), (22, 9389545), (55, 3755818), (79, 2614810), (110, 1877909), (121, 1707190), (158, 1307405), (242, 853595), (395, 522962), (605, 341438), (790, 261481), (869, 237710), (1210, 170719), (1738, 118855), (2161, 95590), (4322, 47795), (4345, 47542), (8690, 23771), (9559, 21610), (10805, 19118)]