20565744

素因数分解:

$2^4\times 3^1\times {\mathrm{157}}^1\times {\mathrm{2729}}^1$

素因数の和:2897

約数の個数: 40

約数和(自身を含む): 53486160

約数和(自身を除く): 32920416

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 157, 314, 471, 628, 942, 1256, 1884, 2512, 2729, 3768, 5458, 7536, 8187, 10916, 16374, 21832, 32748, 43664, 65496, 130992, 428453, 856906, 1285359, 1713812, 2570718, 3427624, 5141436, 6855248, 10282872, 20565744]

約数ペア:

[(1, 20565744), (2, 10282872), (3, 6855248), (4, 5141436), (6, 3427624), (8, 2570718), (12, 1713812), (16, 1285359), (24, 856906), (48, 428453), (157, 130992), (314, 65496), (471, 43664), (628, 32748), (942, 21832), (1256, 16374), (1884, 10916), (2512, 8187), (2729, 7536), (3768, 5458)]