66938640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{278911}}^1$

素因数の和:278927

約数の個数: 40

約数和(自身を含む): 207510528

約数和(自身を除く): 140571888

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 278911, 557822, 836733, 1115644, 1394555, 1673466, 2231288, 2789110, 3346932, 4183665, 4462576, 5578220, 6693864, 8367330, 11156440, 13387728, 16734660, 22312880, 33469320, 66938640]

約数ペア:

[(1, 66938640), (2, 33469320), (3, 22312880), (4, 16734660), (5, 13387728), (6, 11156440), (8, 8367330), (10, 6693864), (12, 5578220), (15, 4462576), (16, 4183665), (20, 3346932), (24, 2789110), (30, 2231288), (40, 1673466), (48, 1394555), (60, 1115644), (80, 836733), (120, 557822), (240, 278911)]