2680457860

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{331}}^1\times {\mathrm{2579}}^1$

素因数の和:3076

約数の個数: 48

約数和(自身を含む): 5684132160

約数和(自身を除く): 3003674300

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 331, 628, 662, 785, 1324, 1570, 1655, 2579, 3140, 3310, 5158, 6620, 10316, 12895, 25790, 51580, 51967, 103934, 207868, 259835, 404903, 519670, 809806, 853649, 1039340, 1619612, 1707298, 2024515, 3414596, 4049030, 4268245, 8098060, 8536490, 17072980, 134022893, 268045786, 536091572, 670114465, 1340228930, 2680457860]

約数ペア:

[(1, 2680457860), (2, 1340228930), (4, 670114465), (5, 536091572), (10, 268045786), (20, 134022893), (157, 17072980), (314, 8536490), (331, 8098060), (628, 4268245), (662, 4049030), (785, 3414596), (1324, 2024515), (1570, 1707298), (1655, 1619612), (2579, 1039340), (3140, 853649), (3310, 809806), (5158, 519670), (6620, 404903), (10316, 259835), (12895, 207868), (25790, 103934), (51580, 51967)]