20528033360

素因数分解:

$2^4\times 5^1\times {\mathrm{1493}}^1\times {\mathrm{171869}}^1$

素因数の和:173375

約数の個数: 40

約数和(自身を含む): 47759923080

約数和(自身を除く): 27231889720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1493, 2986, 5972, 7465, 11944, 14930, 23888, 29860, 59720, 119440, 171869, 343738, 687476, 859345, 1374952, 1718690, 2749904, 3437380, 6874760, 13749520, 256600417, 513200834, 1026401668, 1283002085, 2052803336, 2566004170, 4105606672, 5132008340, 10264016680, 20528033360]

約数ペア:

[(1, 20528033360), (2, 10264016680), (4, 5132008340), (5, 4105606672), (8, 2566004170), (10, 2052803336), (16, 1283002085), (20, 1026401668), (40, 513200834), (80, 256600417), (1493, 13749520), (2986, 6874760), (5972, 3437380), (7465, 2749904), (11944, 1718690), (14930, 1374952), (23888, 859345), (29860, 687476), (59720, 343738), (119440, 171869)]