87537980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{307}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 188606880

約数和(自身を除く): 101068900

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 269, 307, 530, 538, 614, 1060, 1076, 1228, 1345, 1535, 2690, 3070, 5380, 6140, 14257, 16271, 28514, 32542, 57028, 65084, 71285, 81355, 82583, 142570, 162710, 165166, 285140, 325420, 330332, 412915, 825830, 1651660, 4376899, 8753798, 17507596, 21884495, 43768990, 87537980]

約数ペア:

[(1, 87537980), (2, 43768990), (4, 21884495), (5, 17507596), (10, 8753798), (20, 4376899), (53, 1651660), (106, 825830), (212, 412915), (265, 330332), (269, 325420), (307, 285140), (530, 165166), (538, 162710), (614, 142570), (1060, 82583), (1076, 81355), (1228, 71285), (1345, 65084), (1535, 57028), (2690, 32542), (3070, 28514), (5380, 16271), (6140, 14257)]