281036260

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{71329}}^1$

素因数の和:71535

約数の個数: 24

約数和(自身を含む): 593180280

約数和(自身を除く): 312144020

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 71329, 142658, 285316, 356645, 713290, 1426580, 14051813, 28103626, 56207252, 70259065, 140518130, 281036260]

約数ペア:

[(1, 281036260), (2, 140518130), (4, 70259065), (5, 56207252), (10, 28103626), (20, 14051813), (197, 1426580), (394, 713290), (788, 356645), (985, 285316), (1970, 142658), (3940, 71329)]