20306656

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:275

約数の個数: 48

約数和(自身を含む): 41434848

約数和(自身を除く): 21128192

約数列:

[1, 2, 4, 8, 16, 32, 61, 101, 103, 122, 202, 206, 244, 404, 412, 488, 808, 824, 976, 1616, 1648, 1952, 3232, 3296, 6161, 6283, 10403, 12322, 12566, 20806, 24644, 25132, 41612, 49288, 50264, 83224, 98576, 100528, 166448, 197152, 201056, 332896, 634583, 1269166, 2538332, 5076664, 10153328, 20306656]

約数ペア:

[(1, 20306656), (2, 10153328), (4, 5076664), (8, 2538332), (16, 1269166), (32, 634583), (61, 332896), (101, 201056), (103, 197152), (122, 166448), (202, 100528), (206, 98576), (244, 83224), (404, 50264), (412, 49288), (488, 41612), (808, 25132), (824, 24644), (976, 20806), (1616, 12566), (1648, 12322), (1952, 10403), (3232, 6283), (3296, 6161)]