12121970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1103}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 25118208

約数和(自身を除く): 12996238

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1103, 1570, 2198, 2206, 5495, 5515, 7721, 10990, 11030, 15442, 38605, 77210, 173171, 346342, 865855, 1212197, 1731710, 2424394, 6060985, 12121970]

約数ペア:

[(1, 12121970), (2, 6060985), (5, 2424394), (7, 1731710), (10, 1212197), (14, 865855), (35, 346342), (70, 173171), (157, 77210), (314, 38605), (785, 15442), (1099, 11030), (1103, 10990), (1570, 7721), (2198, 5515), (2206, 5495)]