20863264

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:377

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 22113824

約数列:

[1, 2, 4, 8, 16, 32, 37, 67, 74, 134, 148, 263, 268, 296, 526, 536, 592, 1052, 1072, 1184, 2104, 2144, 2479, 4208, 4958, 8416, 9731, 9916, 17621, 19462, 19832, 35242, 38924, 39664, 70484, 77848, 79328, 140968, 155696, 281936, 311392, 563872, 651977, 1303954, 2607908, 5215816, 10431632, 20863264]

約数ペア:

[(1, 20863264), (2, 10431632), (4, 5215816), (8, 2607908), (16, 1303954), (32, 651977), (37, 563872), (67, 311392), (74, 281936), (134, 155696), (148, 140968), (263, 79328), (268, 77848), (296, 70484), (526, 39664), (536, 38924), (592, 35242), (1052, 19832), (1072, 19462), (1184, 17621), (2104, 9916), (2144, 9731), (2479, 8416), (4208, 4958)]