490077980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3500557}}^1$

素因数の和:3500573

約数の個数: 24

約数和(自身を含む): 1176187488

約数和(自身を除く): 686109508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3500557, 7001114, 14002228, 17502785, 24503899, 35005570, 49007798, 70011140, 98015596, 122519495, 245038990, 490077980]

約数ペア:

[(1, 490077980), (2, 245038990), (4, 122519495), (5, 98015596), (7, 70011140), (10, 49007798), (14, 35005570), (20, 24503899), (28, 17502785), (35, 14002228), (70, 7001114), (140, 3500557)]