18705680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{33403}}^1$

素因数の和:33423

約数の個数: 40

約数和(自身を含む): 49705152

約数和(自身を除く): 30999472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 33403, 66806, 133612, 167015, 233821, 267224, 334030, 467642, 534448, 668060, 935284, 1169105, 1336120, 1870568, 2338210, 2672240, 3741136, 4676420, 9352840, 18705680]

約数ペア:

[(1, 18705680), (2, 9352840), (4, 4676420), (5, 3741136), (7, 2672240), (8, 2338210), (10, 1870568), (14, 1336120), (16, 1169105), (20, 935284), (28, 668060), (35, 534448), (40, 467642), (56, 334030), (70, 267224), (80, 233821), (112, 167015), (140, 133612), (280, 66806), (560, 33403)]