40001390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2543}}^1$

素因数の和:2585

約数の個数: 48

約数和(自身を含む): 85264704

約数和(自身を除く): 45263314

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 121, 130, 143, 242, 286, 605, 715, 1210, 1430, 1573, 2543, 3146, 5086, 7865, 12715, 15730, 25430, 27973, 33059, 55946, 66118, 139865, 165295, 279730, 307703, 330590, 363649, 615406, 727298, 1538515, 1818245, 3077030, 3636490, 4000139, 8000278, 20000695, 40001390]

約数ペア:

[(1, 40001390), (2, 20000695), (5, 8000278), (10, 4000139), (11, 3636490), (13, 3077030), (22, 1818245), (26, 1538515), (55, 727298), (65, 615406), (110, 363649), (121, 330590), (130, 307703), (143, 279730), (242, 165295), (286, 139865), (605, 66118), (715, 55946), (1210, 33059), (1430, 27973), (1573, 25430), (2543, 15730), (3146, 12715), (5086, 7865)]