155569820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1111213}}^1$

素因数の和:1111229

約数の個数: 24

約数和(自身を含む): 373367904

約数和(自身を除く): 217798084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1111213, 2222426, 4444852, 5556065, 7778491, 11112130, 15556982, 22224260, 31113964, 38892455, 77784910, 155569820]

約数ペア:

[(1, 155569820), (2, 77784910), (4, 38892455), (5, 31113964), (7, 22224260), (10, 15556982), (14, 11112130), (20, 7778491), (28, 5556065), (35, 4444852), (70, 2222426), (140, 1111213)]