12691420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{337}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 30663360

約数和(自身を除く): 17971940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 269, 337, 538, 674, 1076, 1345, 1348, 1685, 1883, 2359, 2690, 3370, 3766, 4718, 5380, 6740, 7532, 9415, 9436, 11795, 18830, 23590, 37660, 47180, 90653, 181306, 362612, 453265, 634571, 906530, 1269142, 1813060, 2538284, 3172855, 6345710, 12691420]

約数ペア:

[(1, 12691420), (2, 6345710), (4, 3172855), (5, 2538284), (7, 1813060), (10, 1269142), (14, 906530), (20, 634571), (28, 453265), (35, 362612), (70, 181306), (140, 90653), (269, 47180), (337, 37660), (538, 23590), (674, 18830), (1076, 11795), (1345, 9436), (1348, 9415), (1685, 7532), (1883, 6740), (2359, 5380), (2690, 4718), (3370, 3766)]