313492720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{35951}}^1$

素因数の和:36073

約数の個数: 40

約数和(自身を含む): 735577920

約数和(自身を除く): 422085200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 35951, 71902, 143804, 179755, 287608, 359510, 575216, 719020, 1438040, 2876080, 3918659, 7837318, 15674636, 19593295, 31349272, 39186590, 62698544, 78373180, 156746360, 313492720]

約数ペア:

[(1, 313492720), (2, 156746360), (4, 78373180), (5, 62698544), (8, 39186590), (10, 31349272), (16, 19593295), (20, 15674636), (40, 7837318), (80, 3918659), (109, 2876080), (218, 1438040), (436, 719020), (545, 575216), (872, 359510), (1090, 287608), (1744, 179755), (2180, 143804), (4360, 71902), (8720, 35951)]