208380016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1901}}^1$

素因数の和:1970

約数の個数: 80

約数和(自身を含む): 475469568

約数和(自身を除く): 267089552

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 208, 221, 248, 272, 403, 442, 496, 527, 806, 884, 1054, 1612, 1768, 1901, 2108, 3224, 3536, 3802, 4216, 6448, 6851, 7604, 8432, 13702, 15208, 24713, 27404, 30416, 32317, 49426, 54808, 58931, 64634, 98852, 109616, 117862, 129268, 197704, 235724, 258536, 395408, 420121, 471448, 517072, 766103, 840242, 942896, 1001827, 1532206, 1680484, 2003654, 3064412, 3360968, 4007308, 6128824, 6721936, 8014616, 12257648, 13023751, 16029232, 26047502, 52095004, 104190008, 208380016]

約数ペア:

[(1, 208380016), (2, 104190008), (4, 52095004), (8, 26047502), (13, 16029232), (16, 13023751), (17, 12257648), (26, 8014616), (31, 6721936), (34, 6128824), (52, 4007308), (62, 3360968), (68, 3064412), (104, 2003654), (124, 1680484), (136, 1532206), (208, 1001827), (221, 942896), (248, 840242), (272, 766103), (403, 517072), (442, 471448), (496, 420121), (527, 395408), (806, 258536), (884, 235724), (1054, 197704), (1612, 129268), (1768, 117862), (1901, 109616), (2108, 98852), (3224, 64634), (3536, 58931), (3802, 54808), (4216, 49426), (6448, 32317), (6851, 30416), (7604, 27404), (8432, 24713), (13702, 15208)]