1400760820

素因数分解:

$2^2\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{54251}}^1$

素因数の和:55551

約数の個数: 24

約数和(自身を含む): 2943930528

約数和(自身を除く): 1543169708

約数列:

[1, 2, 4, 5, 10, 20, 1291, 2582, 5164, 6455, 12910, 25820, 54251, 108502, 217004, 271255, 542510, 1085020, 70038041, 140076082, 280152164, 350190205, 700380410, 1400760820]

約数ペア:

[(1, 1400760820), (2, 700380410), (4, 350190205), (5, 280152164), (10, 140076082), (20, 70038041), (1291, 1085020), (2582, 542510), (5164, 271255), (6455, 217004), (12910, 108502), (25820, 54251)]