42906220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{306473}}^1$

素因数の和:306489

約数の個数: 24

約数和(自身を含む): 102975264

約数和(自身を除く): 60069044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 306473, 612946, 1225892, 1532365, 2145311, 3064730, 4290622, 6129460, 8581244, 10726555, 21453110, 42906220]

約数ペア:

[(1, 42906220), (2, 21453110), (4, 10726555), (5, 8581244), (7, 6129460), (10, 4290622), (14, 3064730), (20, 2145311), (28, 1532365), (35, 1225892), (70, 612946), (140, 306473)]