81146940

素因数分解:

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

素因数の和:3976

約数の個数: 96

約数和(自身を含む): 265036800

約数和(自身を除く): 183889860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1029, 1372, 1470, 1715, 2058, 2940, 3430, 3943, 4116, 5145, 6860, 7886, 10290, 11829, 15772, 19715, 20580, 23658, 27601, 39430, 47316, 55202, 59145, 78860, 82803, 110404, 118290, 138005, 165606, 193207, 236580, 276010, 331212, 386414, 414015, 552020, 579621, 772828, 828030, 966035, 1159242, 1352449, 1656060, 1932070, 2318484, 2704898, 2898105, 3864140, 4057347, 5409796, 5796210, 6762245, 8114694, 11592420, 13524490, 16229388, 20286735, 27048980, 40573470, 81146940]

約数ペア:

[(1, 81146940), (2, 40573470), (3, 27048980), (4, 20286735), (5, 16229388), (6, 13524490), (7, 11592420), (10, 8114694), (12, 6762245), (14, 5796210), (15, 5409796), (20, 4057347), (21, 3864140), (28, 2898105), (30, 2704898), (35, 2318484), (42, 1932070), (49, 1656060), (60, 1352449), (70, 1159242), (84, 966035), (98, 828030), (105, 772828), (140, 579621), (147, 552020), (196, 414015), (210, 386414), (245, 331212), (294, 276010), (343, 236580), (420, 193207), (490, 165606), (588, 138005), (686, 118290), (735, 110404), (980, 82803), (1029, 78860), (1372, 59145), (1470, 55202), (1715, 47316), (2058, 39430), (2940, 27601), (3430, 23658), (3943, 20580), (4116, 19715), (5145, 15772), (6860, 11829), (7886, 10290)]