71457765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{1597}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 121192320

約数和(自身を除く): 49734555

約数列:

[1, 3, 5, 15, 19, 57, 95, 157, 285, 471, 785, 1597, 2355, 2983, 4791, 7985, 8949, 14915, 23955, 30343, 44745, 91029, 151715, 250729, 455145, 752187, 1253645, 3760935, 4763851, 14291553, 23819255, 71457765]

約数ペア:

[(1, 71457765), (3, 23819255), (5, 14291553), (15, 4763851), (19, 3760935), (57, 1253645), (95, 752187), (157, 455145), (285, 250729), (471, 151715), (785, 91029), (1597, 44745), (2355, 30343), (2983, 23955), (4791, 14915), (7985, 8949)]