20716290

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 64350720

約数和(自身を除く): 43634430

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 97, 105, 113, 126, 135, 189, 194, 210, 226, 270, 291, 315, 339, 378, 485, 565, 582, 630, 678, 679, 791, 873, 945, 970, 1017, 1130, 1358, 1455, 1582, 1695, 1746, 1890, 2034, 2037, 2373, 2619, 2910, 3051, 3390, 3395, 3955, 4074, 4365, 4746, 5085, 5238, 6102, 6111, 6790, 7119, 7910, 8730, 10170, 10185, 10961, 11865, 12222, 13095, 14238, 15255, 18333, 20370, 21357, 21922, 23730, 26190, 30510, 30555, 32883, 35595, 36666, 42714, 54805, 61110, 65766, 71190, 76727, 91665, 98649, 106785, 109610, 153454, 164415, 183330, 197298, 213570, 230181, 295947, 328830, 383635, 460362, 493245, 591894, 690543, 767270, 986490, 1150905, 1381086, 1479735, 2071629, 2301810, 2959470, 3452715, 4143258, 6905430, 10358145, 20716290]

約数ペア:

[(1, 20716290), (2, 10358145), (3, 6905430), (5, 4143258), (6, 3452715), (7, 2959470), (9, 2301810), (10, 2071629), (14, 1479735), (15, 1381086), (18, 1150905), (21, 986490), (27, 767270), (30, 690543), (35, 591894), (42, 493245), (45, 460362), (54, 383635), (63, 328830), (70, 295947), (90, 230181), (97, 213570), (105, 197298), (113, 183330), (126, 164415), (135, 153454), (189, 109610), (194, 106785), (210, 98649), (226, 91665), (270, 76727), (291, 71190), (315, 65766), (339, 61110), (378, 54805), (485, 42714), (565, 36666), (582, 35595), (630, 32883), (678, 30555), (679, 30510), (791, 26190), (873, 23730), (945, 21922), (970, 21357), (1017, 20370), (1130, 18333), (1358, 15255), (1455, 14238), (1582, 13095), (1695, 12222), (1746, 11865), (1890, 10961), (2034, 10185), (2037, 10170), (2373, 8730), (2619, 7910), (2910, 7119), (3051, 6790), (3390, 6111), (3395, 6102), (3955, 5238), (4074, 5085), (4365, 4746)]