81478156

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{6197}}^1$

素因数の和:6393

約数の個数: 24

約数和(自身を含む): 150983280

約数和(自身を除く): 69505124

約数列:

[1, 2, 4, 19, 38, 76, 173, 346, 692, 3287, 6197, 6574, 12394, 13148, 24788, 117743, 235486, 470972, 1072081, 2144162, 4288324, 20369539, 40739078, 81478156]

約数ペア:

[(1, 81478156), (2, 40739078), (4, 20369539), (19, 4288324), (38, 2144162), (76, 1072081), (173, 470972), (346, 235486), (692, 117743), (3287, 24788), (6197, 13148), (6574, 12394)]