87887240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{313883}}^1$

素因数の和:313901

約数の個数: 32

約数和(自身を含む): 225996480

約数和(自身を除く): 138109240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 313883, 627766, 1255532, 1569415, 2197181, 2511064, 3138830, 4394362, 6277660, 8788724, 10985905, 12555320, 17577448, 21971810, 43943620, 87887240]

約数ペア:

[(1, 87887240), (2, 43943620), (4, 21971810), (5, 17577448), (7, 12555320), (8, 10985905), (10, 8788724), (14, 6277660), (20, 4394362), (28, 3138830), (35, 2511064), (40, 2197181), (56, 1569415), (70, 1255532), (140, 627766), (280, 313883)]