18158220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 55429920

約数和(自身を除く): 37271700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 359, 562, 718, 843, 1077, 1124, 1405, 1436, 1686, 1795, 2154, 2529, 2810, 3231, 3372, 3590, 4215, 4308, 5058, 5385, 5620, 6462, 7180, 8430, 10116, 10770, 12645, 12924, 16155, 16860, 21540, 25290, 32310, 50580, 64620, 100879, 201758, 302637, 403516, 504395, 605274, 907911, 1008790, 1210548, 1513185, 1815822, 2017580, 3026370, 3631644, 4539555, 6052740, 9079110, 18158220]

約数ペア:

[(1, 18158220), (2, 9079110), (3, 6052740), (4, 4539555), (5, 3631644), (6, 3026370), (9, 2017580), (10, 1815822), (12, 1513185), (15, 1210548), (18, 1008790), (20, 907911), (30, 605274), (36, 504395), (45, 403516), (60, 302637), (90, 201758), (180, 100879), (281, 64620), (359, 50580), (562, 32310), (718, 25290), (843, 21540), (1077, 16860), (1124, 16155), (1405, 12924), (1436, 12645), (1686, 10770), (1795, 10116), (2154, 8430), (2529, 7180), (2810, 6462), (3231, 5620), (3372, 5385), (3590, 5058), (4215, 4308)]