20949610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{659}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 43765920

約数和(自身を除く): 22816310

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 659, 935, 1318, 1445, 1870, 2890, 3179, 3295, 6358, 6590, 7249, 11203, 14498, 15895, 22406, 31790, 36245, 56015, 72490, 112030, 123233, 190451, 246466, 380902, 616165, 952255, 1232330, 1904510, 2094961, 4189922, 10474805, 20949610]

約数ペア:

[(1, 20949610), (2, 10474805), (5, 4189922), (10, 2094961), (11, 1904510), (17, 1232330), (22, 952255), (34, 616165), (55, 380902), (85, 246466), (110, 190451), (170, 123233), (187, 112030), (289, 72490), (374, 56015), (578, 36245), (659, 31790), (935, 22406), (1318, 15895), (1445, 14498), (1870, 11203), (2890, 7249), (3179, 6590), (3295, 6358)]