20808614916

素因数分解:

$2^2\times 3^2\times {\mathrm{109}}^1\times {\mathrm{2273}}^1\times {\mathrm{2333}}^1$

素因数の和:4725

約数の個数: 72

約数和(自身を含む): 53128235160

約数和(自身を除く): 32319620244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 109, 218, 327, 436, 654, 981, 1308, 1962, 2273, 2333, 3924, 4546, 4666, 6819, 6999, 9092, 9332, 13638, 13998, 20457, 20997, 27276, 27996, 40914, 41994, 81828, 83988, 247757, 254297, 495514, 508594, 743271, 762891, 991028, 1017188, 1486542, 1525782, 2229813, 2288673, 2973084, 3051564, 4459626, 4577346, 5302909, 8919252, 9154692, 10605818, 15908727, 21211636, 31817454, 47726181, 63634908, 95452362, 190904724, 578017081, 1156034162, 1734051243, 2312068324, 3468102486, 5202153729, 6936204972, 10404307458, 20808614916]

約数ペア:

[(1, 20808614916), (2, 10404307458), (3, 6936204972), (4, 5202153729), (6, 3468102486), (9, 2312068324), (12, 1734051243), (18, 1156034162), (36, 578017081), (109, 190904724), (218, 95452362), (327, 63634908), (436, 47726181), (654, 31817454), (981, 21211636), (1308, 15908727), (1962, 10605818), (2273, 9154692), (2333, 8919252), (3924, 5302909), (4546, 4577346), (4666, 4459626), (6819, 3051564), (6999, 2973084), (9092, 2288673), (9332, 2229813), (13638, 1525782), (13998, 1486542), (20457, 1017188), (20997, 991028), (27276, 762891), (27996, 743271), (40914, 508594), (41994, 495514), (81828, 254297), (83988, 247757)]