81239580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451331}}^1$

素因数の和:451346

約数の個数: 36

約数和(自身を含む): 246427272

約数和(自身を除く): 165187692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451331, 902662, 1353993, 1805324, 2256655, 2707986, 4061979, 4513310, 5415972, 6769965, 8123958, 9026620, 13539930, 16247916, 20309895, 27079860, 40619790, 81239580]

約数ペア:

[(1, 81239580), (2, 40619790), (3, 27079860), (4, 20309895), (5, 16247916), (6, 13539930), (9, 9026620), (10, 8123958), (12, 6769965), (15, 5415972), (18, 4513310), (20, 4061979), (30, 2707986), (36, 2256655), (45, 1805324), (60, 1353993), (90, 902662), (180, 451331)]