201720310

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{3877}}^1$

素因数の和:3949

約数の個数: 48

約数和(自身を含む): 408493008

約数和(自身を除く): 206772698

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 121, 215, 242, 430, 473, 605, 946, 1210, 2365, 3877, 4730, 5203, 7754, 10406, 19385, 26015, 38770, 42647, 52030, 85294, 166711, 213235, 333422, 426470, 469117, 833555, 938234, 1667110, 1833821, 2345585, 3667642, 4691170, 9169105, 18338210, 20172031, 40344062, 100860155, 201720310]

約数ペア:

[(1, 201720310), (2, 100860155), (5, 40344062), (10, 20172031), (11, 18338210), (22, 9169105), (43, 4691170), (55, 3667642), (86, 2345585), (110, 1833821), (121, 1667110), (215, 938234), (242, 833555), (430, 469117), (473, 426470), (605, 333422), (946, 213235), (1210, 166711), (2365, 85294), (3877, 52030), (4730, 42647), (5203, 38770), (7754, 26015), (10406, 19385)]