20101072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1103}}^1$

素因数の和:1195

約数の個数: 40

約数和(自身を含む): 41890176

約数和(自身を除く): 21789104

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 1072, 1103, 1139, 2206, 2278, 4412, 4556, 8824, 9112, 17648, 18224, 18751, 37502, 73901, 75004, 147802, 150008, 295604, 300016, 591208, 1182416, 1256317, 2512634, 5025268, 10050536, 20101072]

約数ペア:

[(1, 20101072), (2, 10050536), (4, 5025268), (8, 2512634), (16, 1256317), (17, 1182416), (34, 591208), (67, 300016), (68, 295604), (134, 150008), (136, 147802), (268, 75004), (272, 73901), (536, 37502), (1072, 18751), (1103, 18224), (1139, 17648), (2206, 9112), (2278, 8824), (4412, 4556)]