77989660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557069}}^1$

素因数の和:557085

約数の個数: 24

約数和(自身を含む): 187175520

約数和(自身を除く): 109185860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557069, 1114138, 2228276, 2785345, 3899483, 5570690, 7798966, 11141380, 15597932, 19497415, 38994830, 77989660]

約数ペア:

[(1, 77989660), (2, 38994830), (4, 19497415), (5, 15597932), (7, 11141380), (10, 7798966), (14, 5570690), (20, 3899483), (28, 2785345), (35, 2228276), (70, 1114138), (140, 557069)]