20207915

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1931}}^1$

素因数の和:1979

約数の個数: 32

約数和(自身を含む): 31159296

約数和(自身を除く): 10951381

約数列:

[1, 5, 7, 13, 23, 35, 65, 91, 115, 161, 299, 455, 805, 1495, 1931, 2093, 9655, 10465, 13517, 25103, 44413, 67585, 125515, 175721, 222065, 310891, 577369, 878605, 1554455, 2886845, 4041583, 20207915]

約数ペア:

[(1, 20207915), (5, 4041583), (7, 2886845), (13, 1554455), (23, 878605), (35, 577369), (65, 310891), (91, 222065), (115, 175721), (161, 125515), (299, 67585), (455, 44413), (805, 25103), (1495, 13517), (1931, 10465), (2093, 9655)]