987281380

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{134507}}^1$

素因数の和:134883

約数の個数: 24

約数和(自身を含む): 2078955648

約数和(自身を除く): 1091674268

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 3670, 7340, 134507, 269014, 538028, 672535, 1345070, 2690140, 49364069, 98728138, 197456276, 246820345, 493640690, 987281380]

約数ペア:

[(1, 987281380), (2, 493640690), (4, 246820345), (5, 197456276), (10, 98728138), (20, 49364069), (367, 2690140), (734, 1345070), (1468, 672535), (1835, 538028), (3670, 269014), (7340, 134507)]