68861960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 160272000

約数和(自身を除く): 91410040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 199, 205, 211, 328, 398, 410, 422, 796, 820, 844, 995, 1055, 1592, 1640, 1688, 1990, 2110, 3980, 4220, 7960, 8159, 8440, 8651, 16318, 17302, 32636, 34604, 40795, 41989, 43255, 65272, 69208, 81590, 83978, 86510, 163180, 167956, 173020, 209945, 326360, 335912, 346040, 419890, 839780, 1679560, 1721549, 3443098, 6886196, 8607745, 13772392, 17215490, 34430980, 68861960]

約数ペア:

[(1, 68861960), (2, 34430980), (4, 17215490), (5, 13772392), (8, 8607745), (10, 6886196), (20, 3443098), (40, 1721549), (41, 1679560), (82, 839780), (164, 419890), (199, 346040), (205, 335912), (211, 326360), (328, 209945), (398, 173020), (410, 167956), (422, 163180), (796, 86510), (820, 83978), (844, 81590), (995, 69208), (1055, 65272), (1592, 43255), (1640, 41989), (1688, 40795), (1990, 34604), (2110, 32636), (3980, 17302), (4220, 16318), (7960, 8651), (8159, 8440)]