81238320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112831}}^1$

素因数の和:112850

約数の個数: 60

約数和(自身を含む): 272827776

約数和(自身を除く): 191589456

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112831, 225662, 338493, 451324, 564155, 676986, 902648, 1015479, 1128310, 1353972, 1692465, 1805296, 2030958, 2256620, 2707944, 3384930, 4061916, 4513240, 5077395, 5415888, 6769860, 8123832, 9026480, 10154790, 13539720, 16247664, 20309580, 27079440, 40619160, 81238320]

約数ペア:

[(1, 81238320), (2, 40619160), (3, 27079440), (4, 20309580), (5, 16247664), (6, 13539720), (8, 10154790), (9, 9026480), (10, 8123832), (12, 6769860), (15, 5415888), (16, 5077395), (18, 4513240), (20, 4061916), (24, 3384930), (30, 2707944), (36, 2256620), (40, 2030958), (45, 1805296), (48, 1692465), (60, 1353972), (72, 1128310), (80, 1015479), (90, 902648), (120, 676986), (144, 564155), (180, 451324), (240, 338493), (360, 225662), (720, 112831)]