20188976

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:621

約数の個数: 40

約数和(自身を含む): 40853040

約数和(自身を除く): 20664064

約数列:

[1, 2, 4, 8, 16, 37, 67, 74, 134, 148, 268, 296, 509, 536, 592, 1018, 1072, 2036, 2479, 4072, 4958, 8144, 9916, 18833, 19832, 34103, 37666, 39664, 68206, 75332, 136412, 150664, 272824, 301328, 545648, 1261811, 2523622, 5047244, 10094488, 20188976]

約数ペア:

[(1, 20188976), (2, 10094488), (4, 5047244), (8, 2523622), (16, 1261811), (37, 545648), (67, 301328), (74, 272824), (134, 150664), (148, 136412), (268, 75332), (296, 68206), (509, 39664), (536, 37666), (592, 34103), (1018, 19832), (1072, 18833), (2036, 9916), (2479, 8144), (4072, 4958)]