247978140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4132969}}^1$

素因数の和:4132981

約数の個数: 24

約数和(自身を含む): 694338960

約数和(自身を除く): 446360820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4132969, 8265938, 12398907, 16531876, 20664845, 24797814, 41329690, 49595628, 61994535, 82659380, 123989070, 247978140]

約数ペア:

[(1, 247978140), (2, 123989070), (3, 82659380), (4, 61994535), (5, 49595628), (6, 41329690), (10, 24797814), (12, 20664845), (15, 16531876), (20, 12398907), (30, 8265938), (60, 4132969)]