18051680

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{439}}^1$

素因数の和:711

約数の個数: 48

約数和(自身を含む): 42910560

約数和(自身を除く): 24858880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 439, 514, 878, 1028, 1285, 1756, 2056, 2195, 2570, 3512, 4112, 4390, 5140, 7024, 8224, 8780, 10280, 14048, 17560, 20560, 35120, 41120, 70240, 112823, 225646, 451292, 564115, 902584, 1128230, 1805168, 2256460, 3610336, 4512920, 9025840, 18051680]

約数ペア:

[(1, 18051680), (2, 9025840), (4, 4512920), (5, 3610336), (8, 2256460), (10, 1805168), (16, 1128230), (20, 902584), (32, 564115), (40, 451292), (80, 225646), (160, 112823), (257, 70240), (439, 41120), (514, 35120), (878, 20560), (1028, 17560), (1285, 14048), (1756, 10280), (2056, 8780), (2195, 8224), (2570, 7024), (3512, 5140), (4112, 4390)]