20808775688

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{449}}^1\times {\mathrm{677}}^1$

素因数の和:1374

約数の個数: 64

約数和(自身を含む): 40273200000

約数和(自身を除く): 19464424312

約数列:

[1, 2, 4, 8, 43, 86, 172, 199, 344, 398, 449, 677, 796, 898, 1354, 1592, 1796, 2708, 3592, 5416, 8557, 17114, 19307, 29111, 34228, 38614, 58222, 68456, 77228, 89351, 116444, 134723, 154456, 178702, 232888, 269446, 303973, 357404, 538892, 607946, 714808, 1077784, 1215892, 2431784, 3842093, 5793089, 7684186, 11586178, 13070839, 15368372, 23172356, 26141678, 30736744, 46344712, 52283356, 60490627, 104566712, 120981254, 241962508, 483925016, 2601096961, 5202193922, 10404387844, 20808775688]

約数ペア:

[(1, 20808775688), (2, 10404387844), (4, 5202193922), (8, 2601096961), (43, 483925016), (86, 241962508), (172, 120981254), (199, 104566712), (344, 60490627), (398, 52283356), (449, 46344712), (677, 30736744), (796, 26141678), (898, 23172356), (1354, 15368372), (1592, 13070839), (1796, 11586178), (2708, 7684186), (3592, 5793089), (5416, 3842093), (8557, 2431784), (17114, 1215892), (19307, 1077784), (29111, 714808), (34228, 607946), (38614, 538892), (58222, 357404), (68456, 303973), (77228, 269446), (89351, 232888), (116444, 178702), (134723, 154456)]