28302140

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21121}}^1$

素因数の和:21197

約数の個数: 24

約数和(自身を含む): 60324432

約数和(自身を除く): 32022292

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21121, 42242, 84484, 105605, 211210, 422420, 1415107, 2830214, 5660428, 7075535, 14151070, 28302140]

約数ペア:

[(1, 28302140), (2, 14151070), (4, 7075535), (5, 5660428), (10, 2830214), (20, 1415107), (67, 422420), (134, 211210), (268, 105605), (335, 84484), (670, 42242), (1340, 21121)]