277907980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1985057}}^1$

素因数の和:1985073

約数の個数: 24

約数和(自身を含む): 666979488

約数和(自身を除く): 389071508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1985057, 3970114, 7940228, 9925285, 13895399, 19850570, 27790798, 39701140, 55581596, 69476995, 138953990, 277907980]

約数ペア:

[(1, 277907980), (2, 138953990), (4, 69476995), (5, 55581596), (7, 39701140), (10, 27790798), (14, 19850570), (20, 13895399), (28, 9925285), (35, 7940228), (70, 3970114), (140, 1985057)]