38668720

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5431}}^1$

素因数の和:5533

約数の個数: 40

約数和(自身を含む): 90931680

約数和(自身を除く): 52262960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 5431, 7120, 10862, 21724, 27155, 43448, 54310, 86896, 108620, 217240, 434480, 483359, 966718, 1933436, 2416795, 3866872, 4833590, 7733744, 9667180, 19334360, 38668720]

約数ペア:

[(1, 38668720), (2, 19334360), (4, 9667180), (5, 7733744), (8, 4833590), (10, 3866872), (16, 2416795), (20, 1933436), (40, 966718), (80, 483359), (89, 434480), (178, 217240), (356, 108620), (445, 86896), (712, 54310), (890, 43448), (1424, 27155), (1780, 21724), (3560, 10862), (5431, 7120)]