644977440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{447901}}^1$

素因数の和:447922

約数の個数: 72

約数和(自身を含む): 2200990428

約数和(自身を除く): 1556012988

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 447901, 895802, 1343703, 1791604, 2239505, 2687406, 3583208, 4031109, 4479010, 5374812, 6718515, 7166416, 8062218, 8958020, 10749624, 13437030, 14332832, 16124436, 17916040, 20155545, 21499248, 26874060, 32248872, 35832080, 40311090, 42998496, 53748120, 64497744, 71664160, 80622180, 107496240, 128995488, 161244360, 214992480, 322488720, 644977440]

約数ペア:

[(1, 644977440), (2, 322488720), (3, 214992480), (4, 161244360), (5, 128995488), (6, 107496240), (8, 80622180), (9, 71664160), (10, 64497744), (12, 53748120), (15, 42998496), (16, 40311090), (18, 35832080), (20, 32248872), (24, 26874060), (30, 21499248), (32, 20155545), (36, 17916040), (40, 16124436), (45, 14332832), (48, 13437030), (60, 10749624), (72, 8958020), (80, 8062218), (90, 7166416), (96, 6718515), (120, 5374812), (144, 4479010), (160, 4031109), (180, 3583208), (240, 2687406), (288, 2239505), (360, 1791604), (480, 1343703), (720, 895802), (1440, 447901)]