19758240

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13721}}^1$

素因数の和:13742

約数の個数: 72

約数和(自身を含む): 67429908

約数和(自身を除く): 47671668

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, 13721, 27442, 41163, 54884, 68605, 82326, 109768, 123489, 137210, 164652, 205815, 219536, 246978, 274420, 329304, 411630, 439072, 493956, 548840, 617445, 658608, 823260, 987912, 1097680, 1234890, 1317216, 1646520, 1975824, 2195360, 2469780, 3293040, 3951648, 4939560, 6586080, 9879120, 19758240]

約数ペア:

[(1, 19758240), (2, 9879120), (3, 6586080), (4, 4939560), (5, 3951648), (6, 3293040), (8, 2469780), (9, 2195360), (10, 1975824), (12, 1646520), (15, 1317216), (16, 1234890), (18, 1097680), (20, 987912), (24, 823260), (30, 658608), (32, 617445), (36, 548840), (40, 493956), (45, 439072), (48, 411630), (60, 329304), (72, 274420), (80, 246978), (90, 219536), (96, 205815), (120, 164652), (144, 137210), (160, 123489), (180, 109768), (240, 82326), (288, 68605), (360, 54884), (480, 41163), (720, 27442), (1440, 13721)]