81925970

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{991}}^1\times {\mathrm{1181}}^1$

素因数の和:2186

約数の個数: 32

約数和(自身を含む): 168846336

約数和(自身を除く): 86920366

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 991, 1181, 1982, 2362, 4955, 5905, 6937, 8267, 9910, 11810, 13874, 16534, 34685, 41335, 69370, 82670, 1170371, 2340742, 5851855, 8192597, 11703710, 16385194, 40962985, 81925970]

約数ペア:

[(1, 81925970), (2, 40962985), (5, 16385194), (7, 11703710), (10, 8192597), (14, 5851855), (35, 2340742), (70, 1170371), (991, 82670), (1181, 69370), (1982, 41335), (2362, 34685), (4955, 16534), (5905, 13874), (6937, 11810), (8267, 9910)]