71987804

素因数分解:

$2^2\times 7^1\times {\mathrm{251}}^1\times {\mathrm{10243}}^1$

素因数の和:10505

約数の個数: 24

約数和(自身を含む): 144563328

約数和(自身を除く): 72575524

約数列:

[1, 2, 4, 7, 14, 28, 251, 502, 1004, 1757, 3514, 7028, 10243, 20486, 40972, 71701, 143402, 286804, 2570993, 5141986, 10283972, 17996951, 35993902, 71987804]

約数ペア:

[(1, 71987804), (2, 35993902), (4, 17996951), (7, 10283972), (14, 5141986), (28, 2570993), (251, 286804), (502, 143402), (1004, 71701), (1757, 40972), (3514, 20486), (7028, 10243)]