13642780

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{3943}}^1$

素因数の和:4125

約数の個数: 24

約数和(自身を含む): 28822752

約数和(自身を除く): 15179972

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 3943, 7886, 15772, 19715, 39430, 78860, 682139, 1364278, 2728556, 3410695, 6821390, 13642780]

約数ペア:

[(1, 13642780), (2, 6821390), (4, 3410695), (5, 2728556), (10, 1364278), (20, 682139), (173, 78860), (346, 39430), (692, 19715), (865, 15772), (1730, 7886), (3460, 3943)]