201668440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{82651}}^1$

素因数の和:82723

約数の個数: 32

約数和(自身を含む): 461198160

約数和(自身を除く): 259529720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 82651, 165302, 330604, 413255, 661208, 826510, 1653020, 3306040, 5041711, 10083422, 20166844, 25208555, 40333688, 50417110, 100834220, 201668440]

約数ペア:

[(1, 201668440), (2, 100834220), (4, 50417110), (5, 40333688), (8, 25208555), (10, 20166844), (20, 10083422), (40, 5041711), (61, 3306040), (122, 1653020), (244, 826510), (305, 661208), (488, 413255), (610, 330604), (1220, 165302), (2440, 82651)]