221760280

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{113143}}^1$

素因数の和:113168

約数の個数: 48

約数和(自身を含む): 580428720

約数和(自身を除く): 358668440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 113143, 226286, 452572, 565715, 792001, 905144, 1131430, 1584002, 2262860, 3168004, 3960005, 4525720, 5544007, 6336008, 7920010, 11088014, 15840020, 22176028, 27720035, 31680040, 44352056, 55440070, 110880140, 221760280]

約数ペア:

[(1, 221760280), (2, 110880140), (4, 55440070), (5, 44352056), (7, 31680040), (8, 27720035), (10, 22176028), (14, 15840020), (20, 11088014), (28, 7920010), (35, 6336008), (40, 5544007), (49, 4525720), (56, 3960005), (70, 3168004), (98, 2262860), (140, 1584002), (196, 1131430), (245, 905144), (280, 792001), (392, 565715), (490, 452572), (980, 226286), (1960, 113143)]