181037920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{161641}}^1$

素因数の和:161663

約数の個数: 48

約数和(自身を含む): 488805408

約数和(自身を除く): 307767488

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 161641, 323282, 646564, 808205, 1131487, 1293128, 1616410, 2262974, 2586256, 3232820, 4525948, 5172512, 5657435, 6465640, 9051896, 11314870, 12931280, 18103792, 22629740, 25862560, 36207584, 45259480, 90518960, 181037920]

約数ペア:

[(1, 181037920), (2, 90518960), (4, 45259480), (5, 36207584), (7, 25862560), (8, 22629740), (10, 18103792), (14, 12931280), (16, 11314870), (20, 9051896), (28, 6465640), (32, 5657435), (35, 5172512), (40, 4525948), (56, 3232820), (70, 2586256), (80, 2262974), (112, 1616410), (140, 1293128), (160, 1131487), (224, 808205), (280, 646564), (560, 323282), (1120, 161641)]