128546640

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{178537}}^1$

素因数の和:178556

約数の個数: 60

約数和(自身を含む): 431704884

約数和(自身を除く): 303158244

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, 178537, 357074, 535611, 714148, 892685, 1071222, 1428296, 1606833, 1785370, 2142444, 2678055, 2856592, 3213666, 3570740, 4284888, 5356110, 6427332, 7141480, 8034165, 8569776, 10712220, 12854664, 14282960, 16068330, 21424440, 25709328, 32136660, 42848880, 64273320, 128546640]

約数ペア:

[(1, 128546640), (2, 64273320), (3, 42848880), (4, 32136660), (5, 25709328), (6, 21424440), (8, 16068330), (9, 14282960), (10, 12854664), (12, 10712220), (15, 8569776), (16, 8034165), (18, 7141480), (20, 6427332), (24, 5356110), (30, 4284888), (36, 3570740), (40, 3213666), (45, 2856592), (48, 2678055), (60, 2142444), (72, 1785370), (80, 1606833), (90, 1428296), (120, 1071222), (144, 892685), (180, 714148), (240, 535611), (360, 357074), (720, 178537)]