28738760

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4153}}^1$

素因数の和:4337

約数の個数: 32

約数和(自身を含む): 65051640

約数和(自身を除く): 36312880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 4153, 6920, 8306, 16612, 20765, 33224, 41530, 83060, 166120, 718469, 1436938, 2873876, 3592345, 5747752, 7184690, 14369380, 28738760]

約数ペア:

[(1, 28738760), (2, 14369380), (4, 7184690), (5, 5747752), (8, 3592345), (10, 2873876), (20, 1436938), (40, 718469), (173, 166120), (346, 83060), (692, 41530), (865, 33224), (1384, 20765), (1730, 16612), (3460, 8306), (4153, 6920)]