80978580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1601}}^1$

素因数の和:1897

約数の個数: 72

約数和(自身を含む): 246663144

約数和(自身を除く): 165684564

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 562, 843, 1124, 1405, 1601, 1686, 2529, 2810, 3202, 3372, 4215, 4803, 5058, 5620, 6404, 8005, 8430, 9606, 10116, 12645, 14409, 16010, 16860, 19212, 24015, 25290, 28818, 32020, 48030, 50580, 57636, 72045, 96060, 144090, 288180, 449881, 899762, 1349643, 1799524, 2249405, 2699286, 4048929, 4498810, 5398572, 6748215, 8097858, 8997620, 13496430, 16195716, 20244645, 26992860, 40489290, 80978580]

約数ペア:

[(1, 80978580), (2, 40489290), (3, 26992860), (4, 20244645), (5, 16195716), (6, 13496430), (9, 8997620), (10, 8097858), (12, 6748215), (15, 5398572), (18, 4498810), (20, 4048929), (30, 2699286), (36, 2249405), (45, 1799524), (60, 1349643), (90, 899762), (180, 449881), (281, 288180), (562, 144090), (843, 96060), (1124, 72045), (1405, 57636), (1601, 50580), (1686, 48030), (2529, 32020), (2810, 28818), (3202, 25290), (3372, 24015), (4215, 19212), (4803, 16860), (5058, 16010), (5620, 14409), (6404, 12645), (8005, 10116), (8430, 9606)]