20402970

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{97157}}^1$

素因数の和:97174

約数の個数: 32

約数和(自身を含む): 55963008

約数和(自身を除く): 35560038

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 97157, 194314, 291471, 485785, 582942, 680099, 971570, 1360198, 1457355, 2040297, 2914710, 3400495, 4080594, 6800990, 10201485, 20402970]

約数ペア:

[(1, 20402970), (2, 10201485), (3, 6800990), (5, 4080594), (6, 3400495), (7, 2914710), (10, 2040297), (14, 1457355), (15, 1360198), (21, 971570), (30, 680099), (35, 582942), (42, 485785), (70, 291471), (105, 194314), (210, 97157)]