205969820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1471213}}^1$

素因数の和:1471229

約数の個数: 24

約数和(自身を含む): 494327904

約数和(自身を除く): 288358084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1471213, 2942426, 5884852, 7356065, 10298491, 14712130, 20596982, 29424260, 41193964, 51492455, 102984910, 205969820]

約数ペア:

[(1, 205969820), (2, 102984910), (4, 51492455), (5, 41193964), (7, 29424260), (10, 20596982), (14, 14712130), (20, 10298491), (28, 7356065), (35, 5884852), (70, 2942426), (140, 1471213)]