64066940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{457621}}^1$

素因数の和:457637

約数の個数: 24

約数和(自身を含む): 153760992

約数和(自身を除く): 89694052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 457621, 915242, 1830484, 2288105, 3203347, 4576210, 6406694, 9152420, 12813388, 16016735, 32033470, 64066940]

約数ペア:

[(1, 64066940), (2, 32033470), (4, 16016735), (5, 12813388), (7, 9152420), (10, 6406694), (14, 4576210), (20, 3203347), (28, 2288105), (35, 1830484), (70, 915242), (140, 457621)]