243440820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{3943}}^1$

素因数の和:3979

約数の個数: 144

約数和(自身を含む): 861369600

約数和(自身を除く): 617928780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1372, 1470, 1715, 1764, 2058, 2205, 2940, 3087, 3430, 3943, 4116, 4410, 5145, 6174, 6860, 7886, 8820, 10290, 11829, 12348, 15435, 15772, 19715, 20580, 23658, 27601, 30870, 35487, 39430, 47316, 55202, 59145, 61740, 70974, 78860, 82803, 110404, 118290, 138005, 141948, 165606, 177435, 193207, 236580, 248409, 276010, 331212, 354870, 386414, 414015, 496818, 552020, 579621, 709740, 772828, 828030, 966035, 993636, 1159242, 1242045, 1352449, 1656060, 1738863, 1932070, 2318484, 2484090, 2704898, 2898105, 3477726, 3864140, 4057347, 4968180, 5409796, 5796210, 6762245, 6955452, 8114694, 8694315, 11592420, 12172041, 13524490, 16229388, 17388630, 20286735, 24344082, 27048980, 34777260, 40573470, 48688164, 60860205, 81146940, 121720410, 243440820]

約数ペア:

[(1, 243440820), (2, 121720410), (3, 81146940), (4, 60860205), (5, 48688164), (6, 40573470), (7, 34777260), (9, 27048980), (10, 24344082), (12, 20286735), (14, 17388630), (15, 16229388), (18, 13524490), (20, 12172041), (21, 11592420), (28, 8694315), (30, 8114694), (35, 6955452), (36, 6762245), (42, 5796210), (45, 5409796), (49, 4968180), (60, 4057347), (63, 3864140), (70, 3477726), (84, 2898105), (90, 2704898), (98, 2484090), (105, 2318484), (126, 1932070), (140, 1738863), (147, 1656060), (180, 1352449), (196, 1242045), (210, 1159242), (245, 993636), (252, 966035), (294, 828030), (315, 772828), (343, 709740), (420, 579621), (441, 552020), (490, 496818), (588, 414015), (630, 386414), (686, 354870), (735, 331212), (882, 276010), (980, 248409), (1029, 236580), (1260, 193207), (1372, 177435), (1470, 165606), (1715, 141948), (1764, 138005), (2058, 118290), (2205, 110404), (2940, 82803), (3087, 78860), (3430, 70974), (3943, 61740), (4116, 59145), (4410, 55202), (5145, 47316), (6174, 39430), (6860, 35487), (7886, 30870), (8820, 27601), (10290, 23658), (11829, 20580), (12348, 19715), (15435, 15772)]