80451880

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{277}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 186449040

約数和(自身を除く): 105997160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 137, 212, 265, 274, 277, 424, 530, 548, 554, 685, 1060, 1096, 1108, 1370, 1385, 2120, 2216, 2740, 2770, 5480, 5540, 7261, 11080, 14522, 14681, 29044, 29362, 36305, 37949, 58088, 58724, 72610, 73405, 75898, 117448, 145220, 146810, 151796, 189745, 290440, 293620, 303592, 379490, 587240, 758980, 1517960, 2011297, 4022594, 8045188, 10056485, 16090376, 20112970, 40225940, 80451880]

約数ペア:

[(1, 80451880), (2, 40225940), (4, 20112970), (5, 16090376), (8, 10056485), (10, 8045188), (20, 4022594), (40, 2011297), (53, 1517960), (106, 758980), (137, 587240), (212, 379490), (265, 303592), (274, 293620), (277, 290440), (424, 189745), (530, 151796), (548, 146810), (554, 145220), (685, 117448), (1060, 75898), (1096, 73405), (1108, 72610), (1370, 58724), (1385, 58088), (2120, 37949), (2216, 36305), (2740, 29362), (2770, 29044), (5480, 14681), (5540, 14522), (7261, 11080)]