4518920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{16139}}^1$

素因数の和:16157

約数の個数: 32

約数和(自身を含む): 11620800

約数和(自身を除く): 7101880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 16139, 32278, 64556, 80695, 112973, 129112, 161390, 225946, 322780, 451892, 564865, 645560, 903784, 1129730, 2259460, 4518920]

約数ペア:

[(1, 4518920), (2, 2259460), (4, 1129730), (5, 903784), (7, 645560), (8, 564865), (10, 451892), (14, 322780), (20, 225946), (28, 161390), (35, 129112), (40, 112973), (56, 80695), (70, 64556), (140, 32278), (280, 16139)]