177220620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2531}}^1$

素因数の和:2935

約数の個数: 72

約数和(自身を含む): 539164080

約数和(自身を除く): 361943460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1167, 1556, 1945, 2334, 2531, 3501, 3890, 4668, 5062, 5835, 7002, 7593, 7780, 10124, 11670, 12655, 14004, 15186, 17505, 22779, 23340, 25310, 30372, 35010, 37965, 45558, 50620, 70020, 75930, 91116, 113895, 151860, 227790, 455580, 984559, 1969118, 2953677, 3938236, 4922795, 5907354, 8861031, 9845590, 11814708, 14768385, 17722062, 19691180, 29536770, 35444124, 44305155, 59073540, 88610310, 177220620]

約数ペア:

[(1, 177220620), (2, 88610310), (3, 59073540), (4, 44305155), (5, 35444124), (6, 29536770), (9, 19691180), (10, 17722062), (12, 14768385), (15, 11814708), (18, 9845590), (20, 8861031), (30, 5907354), (36, 4922795), (45, 3938236), (60, 2953677), (90, 1969118), (180, 984559), (389, 455580), (778, 227790), (1167, 151860), (1556, 113895), (1945, 91116), (2334, 75930), (2531, 70020), (3501, 50620), (3890, 45558), (4668, 37965), (5062, 35010), (5835, 30372), (7002, 25310), (7593, 23340), (7780, 22779), (10124, 17505), (11670, 15186), (12655, 14004)]