81145960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2179}}^1$

素因数の和:2223

約数の個数: 96

約数和(自身を含む): 223668000

約数和(自身を除く): 142522040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 532, 665, 760, 931, 980, 1064, 1330, 1862, 1960, 2179, 2660, 3724, 4358, 4655, 5320, 7448, 8716, 9310, 10895, 15253, 17432, 18620, 21790, 30506, 37240, 41401, 43580, 61012, 76265, 82802, 87160, 106771, 122024, 152530, 165604, 207005, 213542, 289807, 305060, 331208, 414010, 427084, 533855, 579614, 610120, 828020, 854168, 1067710, 1159228, 1449035, 1656040, 2028649, 2135420, 2318456, 2898070, 4057298, 4270840, 5796140, 8114596, 10143245, 11592280, 16229192, 20286490, 40572980, 81145960]

約数ペア:

[(1, 81145960), (2, 40572980), (4, 20286490), (5, 16229192), (7, 11592280), (8, 10143245), (10, 8114596), (14, 5796140), (19, 4270840), (20, 4057298), (28, 2898070), (35, 2318456), (38, 2135420), (40, 2028649), (49, 1656040), (56, 1449035), (70, 1159228), (76, 1067710), (95, 854168), (98, 828020), (133, 610120), (140, 579614), (152, 533855), (190, 427084), (196, 414010), (245, 331208), (266, 305060), (280, 289807), (380, 213542), (392, 207005), (490, 165604), (532, 152530), (665, 122024), (760, 106771), (931, 87160), (980, 82802), (1064, 76265), (1330, 61012), (1862, 43580), (1960, 41401), (2179, 37240), (2660, 30506), (3724, 21790), (4358, 18620), (4655, 17432), (5320, 15253), (7448, 10895), (8716, 9310)]